LM-79 Moving Detector Goniophotometer (Mirror Type C)
LSG-6000
High Precision Rotation Luminaire Goniophotometer
LSG-1890B
High Precision Rotation Luminaire Goniospectroradiometer
LSG-1890BCCD
Goniophotometer for Automotive and Signal Lamps
LSG-1950
Goniophotometer for Traffic Signal Lamps
LSG-1950S
Compact Goniophotometer
LSG-1200A
Near Field Moving Detector Goniophotometer
LSG-1900B
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IEC 62504:2014, titled “General lighting – Light emitting diode (LED) products and related equipment – Terms and definitions,” is the first edition of this international standard published in June 2014 by the International Electrotechnical Commission (IEC). It cancels and replaces the previous IEC TS 62504:2011 technical specification, providing a comprehensive terminology framework for LED-based general lighting systems. The standard aims to facilitate common understanding among manufacturers, distributors, installers, and users by defining key terms used in IEC LED standards and industry literature, including both descriptive terms (e.g., “LED light source,” “LED module”) and measurable technical parameters adapted from IEC 60050-845 (e.g., “colour rendering index,” “correlated colour temperature”). It covers the entire LED product lifecycle from chips and packages to complete lighting systems and controlgear.
The core of IEC 62504:2014 lies in its systematic compilation of precise definitions for LED-specific components and systems, addressing the terminology confusion caused by rapid technological advancements in the LED lighting sector. It defines critical concepts such as “LED package” (a single LED chip or multiple chips with encapsulation and electrical connections), “LED module” (an unlampholder LED light source with one or more packages on a printed circuit board), and “LED controlgear” (devices providing appropriate electrical energy to LEDs). Additionally, Annex A offers valuable overviews of LED package design and system configurations combining LED light sources with controlgear. As a foundational standard, it ensures consistency in product design, testing, certification, and global trade, while serving as the basis for national standards worldwide, including China’s GB/T 24826-2016 which adopts it identically. This standard plays a crucial role in promoting technological innovation and market harmonization across the international LED lighting industry.
LISUN supplies the fully test solutions for the following IEC 62504:2014, please see the below excel table：
| IEC 62504:2014 Clause and Subject | LISUN Model |
| Clause 3.1 aging | SY2036 |
| Clause 3.3 apparent source | EN62471-C |
| Clause beam angle | LSG-1890B |
| Clause 3.5 bin | TRS-1000 |
| Clause 3.7 dominant wavelength of color stimulus | LMS-6000 |
| Clause 3.13 forward voltage | LS860 |
| Clauze 3.26 luminous efficacy | LPCE-2(LMS-9000) |
| Clause 3.27 luminous flux | |
| 3.28 luminous flux maintenance factor | LEDLM-80PL |
| 3.29 luminous intensity | LSG-1200A |
| 3.38.1 ambient temperature | GDJS-015A |
| 3.38.5 junction temperature | T5 |
LISUN’s Motor-Operated Tool | Power Tool Testing solutions strictly comply with a range of core international standards, providing full support for safety and electromagnetic compatibility (EMC)...
LISUN’s audio-video communication testing solutions meet CISPR 13, IEC 60065, FCC Part 15 & EN 55032. Cover EMC, safety & performance tests for reliable AV equipment...
LISUN’s household and appliance switch testing solutions meet IEC 60669, IEC 61058, IEC 62271 standards. Covering electrical, mechanical & EMC tests for global compliance.
LISUN’s automotive electronics test solutions cover photometric/colorimetric testing, EMC immunity tests, IP waterproof/dustproof tests, and environmental simulation, meeting ISO, SAE, ECE standards.
LISUN provide full test solutions for HID lamp, including integrating sphere system, goniophotometer system, EMI EMC chamber, HID ballast tester, electrical safety test, etc.
Lisun can supply full test solutions for fluorescent lamp, including integrating sphere system, goniophotometer system, EMI EMC test, electronic ballast tester, electrical safety test, etc.
For the CFL design and manufactory, LISUN can supply a full quality control test solution, including photometric, colorimetric, electricity, flicker, IES candela distribution, surge test, electrical...
LISUN’s LM-79 and LM-80 test solutions cover LED photometric, colorimetric, and lumen maintenance tests, meeting IES standards for accurate performance evaluation.
LISUN’s indoor and outdoor LED test solutions meet IEC 60598-1, IEC 62722-2-1, CIE 121 standards, covering safety, photometry, and environmental tests for global compliance.
Abstract The light wavelength meter is the core testing equipment for the optical performance detection of light sources, widely applied in lighting, display, plant lighting, ultraviolet...
Abstract: Lumen measurement is the core procedure for luminous flux detection of lighting products, which directly determines the evaluation of light brightness, luminous efficacy and energy...
Abstract: Color temperature is a core photometric and colorimetric parameter in the fields of lighting sources, display devices, horticultural lighting, and healthy lighting. Accurately measure color...
Abstract: Lumen measurement is a core method for evaluating the photometric performance of lighting sources, which directly reflects the luminous capacity and energy efficiency level of...
Abstract The flicker meter has emerged as a critical instrument in modern optical testing, particularly for LED and lighting applications where temporal light modulation directly impacts...
In 2026, the Bureau of Indian Standards (BIS) completed and issued the revised standard IS 16102-2:2026 for the operational performance of outdoor LED lighting equipment. As...
On February 24, 2026, the Bureau of Indian Standards (BIS) officially released the revised safety standard for self-ballasted LED lamps for general lighting, IS 16102-1:2026, which...
Abstract: As the core basis for photoelectric performance compliance certification of solid-state lighting products, the LM-79 Test Report has become a key technical document for products...
Abstract: The lux meter is a core instrument for optical parameter testing of light sources. Its measurement accuracy and parameter coverage directly determine the scientificity of...
Abstract With the continuous advancement of industrial technology and the widespread application of lighting equipment, the demand for accurate measurement of brightness of light has become...
Abstract As a new generation of solid-state lighting sources, LED quality directly determines lighting effect, energy efficiency, and service life. Opto-electro-color parameters are the core indicators...
Abstract In lighting quality assessment, display device calibration, and various light source R&D, color temperature, as a core parameter describing the chromatic characteristics of a light...
Abstract With the upgrading of the lighting industry towards high efficiency and intelligence, the optical-color performance of LED lamps, bulb lamps, and street lamps has become...
Abstract In the modern display technology and lighting industries, spectrum testers, also known as spectroradiometers, have become indispensable tools for measuring color, luminance, and spectral power...
The high rate of development of solid-state lighting has generated the demand of precise and dependable luminous flux measurements. To develop energy-saving LED systems, the optical...
Hong Kong International Autumn Lighting Fair, October 27-30, 2025 — LISUN GROUP, a world-leading supplier of lighting solutions, was invited to participate in the 2025 Hong...
Abstract In the fields of lighting engineering design, luminaire research and development, and quality control, the spatial distribution characteristics of luminaire optical performance are the core...
Abstract As lighting technology advances toward intelligence and specialization, the accurate testing of light source optical performance parameters has become a key link in evaluating lighting...
Abstract With the rapid development of the lighting industry, quality control of light source products has become increasingly crucial, and accurate testing of optical, color, and...
Abstract Light-Emitting Diode (LED), as a new generation of solid-state lighting source, is widely used in various fields due to its advantages of high efficiency, energy...
Abstract In the lighting industry, the photometric, colorimetric, and electrical parameters of luminaires are core indicators for measuring product quality and performance, directly influencing lighting effects,...
Abstract:Aiming at the unclear difference in optical performance among five types of mainstream lighting fixtures in the market, namely bulb lights, PAR lights, LED lights, street...
Abstract Light illumination measurement is a critical technical process in fields such as lighting engineering, industrial production, and environmental monitoring, as it directly determines the rationality...
Abstract With the diversification of lighting technologies, the accurate measurement of luminous performance has become crucial for quality control and standard compliance across lighting product categories....
Abstract This paper delves into the technological advancements and practical applications of the chroma light tester, with a specific focus on the LISUN LMS-6000 Portable CCD...
Introduction In the realm of analytical instrumentation, spectrophotometry stands as one of the most essential and widely used techniques for quantifying light absorption and transmission. By...
Introduction In modern indoor horticulture, the application of LED plant grow lights has become a trend. These fixtures significantly boost the efficiency and yield of indoor...
Introduction Accurate brightness measurement is crucial in the evaluation and optimization of modern lighting products and display technologies. The LISUN LMS-6000L Portable CCD Spectroradiometer, widely regarded...
In the rapidly evolving world of scientific measurement technology, handheld spectrometers have gained significant attention for their portability, efficiency, and versatile applications. One such advanced tool...
In 2019, ANSI and IESNA jointly released the ANSI/IES LM-79-19 standard, establishing a critical benchmark for the LED solid-state lighting (SSL) industry. Over five years later,...
In the rapidly evolving world of light measurement, portable spectroradiometers have become indispensable tools for professionals across various industries. These devices provide precise measurements of light...
Abstract: This paper focuses on the long – focus crossed asymmetric CT spectroscopic system, with a particular emphasis on the crucial role of illuminance. By integrating...
Abstract: The demand for color testing in various industries, including lighting, manufacturing, and quality control, has driven advancements in spectroradiometer technology. Color testers, such as the...
The demand for high-quality lighting solutions has led to a significant focus on testing and standardizing various light sources, including energy-saving lamps, fluorescent lamps, high-intensity discharge...
Introduction Handheld spectrometers are increasingly popular in various fields such as lighting testing, research, and quality control. These devices offer flexibility, portability, and precision in measuring...
Abstract: In modern lighting technology and environmental research, precise light measurement plays an integral role in achieving accuracy and compliance with international standards. One such indispensable...
Introduction The rapid evolution of lighting systems, especially with the advent of LEDs, has raised concerns about the photobiological safety of these light sources. IEC TR...
Introduction In recent years, the demand for high-efficiency lighting systems has increased due to global energy-saving initiatives. This trend has resulted in the widespread use of...
The measurement of light wavelength is a fundamental aspect of photometry and spectrometry, crucial for applications across various scientific and industrial fields. Accurate measurement of light...
Abstract The demand for efficient and reliable lighting solutions has led to various light sources, including bulb lights, PAR lamps, LED lights, street lights, and tubes....
Hong Kong, October 27-30, 2024 – LISUN is excited to announce its participation in the 2024 Hong Kong Lighting Exhibition from October 27th to 30th. As...
LISUN, a leading provider of lighting testing and measurement solutions, is excited to announce its participation in the International Trade Show of Lighting Equipment Light 2024...
What is Calibration Certificate? The calibration certificate provides valuable information on the quality and measurement accuracy of equipment. Calibration is the process used to maintain the...
Dubai, 16th-18th, January, 2024 – LISUN will participate in the Lighting Exhibition held in Dubai from January 16th to 19th, 2024. As a leading global supplier...
In photometry, the measurement of the power of light is carried out using two different instruments: a goniophotometer and an integrating sphere. Both have their own...
Household power supply specifications will vary by region, but generally speaking, voltage values are usually between 100V and 240V, while the most common frequency values are...
Introduction An integrating sphere is a spherical device used to measure the optical properties of materials. It is a hollow sphere coated with a highly reflective...
The special light source hanging in the stalls is also known as the “freshness lamp”. By adjusting the color, brightness, and color temperature of the lighting,...
Introduction Numerous scientific, industrial, and commercial endeavors rely on precise light measurement. High precision spectroradiometer integrating sphere systems have been developed as potent instruments to address...
LM-82 is a standard for the reliability testing of LED test instruments released by the American Lighting Engineering Society (IES). This standard specifies a series of...
Lighting is an indispensable part of human life. It can not only provide light, but also has an important role in shaping the environment, improving work...
Introduction There is a significant amount of reliance on display technology across the board, from consumer gadgets and autos to healthcare. If we want to provide...
LED light engines and integrated LED bulbs are often applied to various types of lamps, including decorative lamps, non -fixed direction lights, etc. Generally speaking, the...
Introduction Light is essential in horticulture, since it affects the progress and yield of plants. Due to their low power consumption and adaptable spectral features, artificial...
Introduction Estimates of solar irradiance, which refer to the quantity of radiant energy that is received from the sun, are very important to the fields of...
Introduction Over the last several years, significant advancements have been made to the integrating sphere used in high-precision spectroradiometers. These advancements have made it possible to...
In recent years, with the development of LED technology and modern facilities such as global plant factories and vertical farms, the plant lighting market has ushered...
Recently, the Saudi Standards, Metrology and Quality Organization (SASO) updated its regulations concerning energy efficiency applications and the regulations will be officially implemented on 30th June,...
On 23th, March, 2023, the U.S. Environmental Protection Agency (EPA) released the latest Energy Star Embedded Luminaire V1.0 Specification, intended to replace the existing Energy Star...
Introduction The testing and characterizing of light-emitting diodes (LEDs) has been revolutionized by high-precision spectroradiometer integrating sphere systems. LEDs are utilized in a broad variety of...
Introduction When it comes to correctly and dependably measuring color, a wide variety of companies rely on spectroradiometer integrating sphere systems of the greatest quality. The...
From October 27th to October 30th, 2023, LISUN participated in the world -renowned Hong Kong International Lighting Fair（Autumn Edition）. This exhibition is an important event in...
Introduction Implementing real-time monitoring and control in high precision spectroradiometer integrating sphere systems has many advantages. These include improved measurement accuracy, system stability, dynamic adjustment, error...
Introduction Accurate light measurement and color characterization rely heavily on high precision spectroradiometer integrating sphere systems. Real-time monitoring and control capabilities have developed as crucial characteristics...
Introduction The use of high precision spectroradiometer integrating sphere systems has had a significant and positive influence on both the science of colorimetry as well as...
Introduction Evaluation of color quality is essential in many different industries, including lighting, automobiles, textiles, and cosmetics, to name just a few of them. The accurate...
Introduction Utilizing high precision spectroradiometer integrating spheres has resulted in significant improvements to the spectrum measuring and analysis processes used in a wide variety of industries....
With the development of technology, LED lighting has been widely used in the field of illumination. In order to ensure the quality and performance of LED...
Introduction The capabilities of high precision spectroradiometer integrating sphere systems for measuring spectra and characterizing sources are quite helpful. However, in order to produce reliable and...
Introduction High-precision spectroradiometer integrating sphere devices have made significant contributions to the improvement of the spectral power distribution (SPD) measuring technique. These devices provide accurate and...
Introduction The characterization of vehicle illumination relies heavily on high precision spectroradiometer integrating sphere systems. Accurate and consistent assessment of light sources is crucial because of...
Standards: Fully meet CIE 177, CIE-13.3 , Optical-Engineering-49-3-033602, and IEEE. The Chroma Meter Specifications: • Spectral resolution: ±0.2nm, Reproducibility: ±0.5nm • Accuracy of chromaticity coordinate (Δx, Δy): ±0.005 • Correlated...
Principle of Integrating Sphere Spectroradiometer System: The light emitted by the lamp is ejected on the inner wall of the integrating sphere. After multiple reflection of...
A integrating sphere is an enclosed hollow sphere lined with a white diffusing material. There is one or several openings on the sphere wall used as...
In recent years, with the growing energy crisis and the increasing awareness of environmental protection, LED bulbs have become a popular choice as energy-efficient lighting products....
Introduction Accurate spectrum measurements and the characterisation of light sources and materials rely heavily on the use of high precision spectroradiometer integrating spheres. Integrating spheres rely...
Introduction Accurate spectrum measurements and the characterisation of light sources and materials are often performed using high precision spectroradiometer integrating sphere systems. Maximizing the light’s dispersion...
Introduction Accurate spectrum measurements and the characterization of light sources and materials are often performed using high precision spectroradiometer integrating sphere systems. Consistent lighting is an...
An integrating sphere collects electromagnetic radiation from a source usually external to the optical device, usually for flux measurement or optical attenuation. Radiation introduced into an...
Integrating sphere is an empty cavity sphere with white diffuse material coated on its inner wall, also known as lightmeter, light sphere, etc. One or several...
I. Overview of the Development of Integrating Sphere Spectrophotometer Analysis System In spite of the advantages of simplicity, reliability and stability of the measuring system of...
Introduction Scientific study, industrial applications, and new product development all need precise and dependable measurements of light sources. Detailed spectrum information is now readily available because...
LED is a highly competitive light source, having significantly advantages such as long life and high efficiency. Therefore, LED lighting has been increasingly used in the...
An optical integrating sphere is an indicative, spherical structure apparatus for measuring light, also known as an integrating sphere, omnidirectional reflectance sphere, or illuminance detector. This...
I. The Structure and Basic Principle of Optical Integrated Sphere The basic principle of an optical integrated sphere is to have a light source at the...
Spectrometers are the basics test equipment used for measure illumination luminous and chromatic parameters, with the progresses of instruments science, electronic and software information technologies, the...
I. Definition of an integrating sphere: An integrating sphere is an empty, hollow cavity covered with a diffuse, white reflective coating, also known as a photopic...
According to the National Market Supervision and Administration and National Standardization Technology Commission announced, the National Lighting Electrical Standardization Technical Committee Light Radiation Measurement Branch of...
Integrating sphere overview: 1. Integrating sphere testing is utilized to measure the optical parameters of a light source and its accessories in order to better understand...
Introduction The material sciences, among others, have benefited greatly from the use of high precision spectroradiometer integrating sphere systems. These devices provide precise spectrum measurements, allowing...
I.Measurement principle of Lux Meter: Light photovoltaic measurement principle: LMS-6000 is a direct conversion of light energy into electrical energy of the photovoltaic components. When the...
Introduction The fields of science, industry, and commerce all rely heavily on accurate and precise light measuring techniques. High precision spectroradiometer integrating sphere systems, made possible...
The handheld spectroradiometer is a spectrometer based on XRF (X Ray Fluorescence) spectroscopy technology, which consists of X-ray tube, detector, CPU and storage. Due to its...
Introduction Integrating spheres are often used in the process of optical measuring in order to get precise findings. Nevertheless, it is possible that the findings of...
Introduction Light source characterization is a common use for integrating spheres because of their adaptability. They allow for the precise measurement of a wide range of...
Introduction: Integrating sphere is a type of optical instrument that are used to measure the total amount of light emitted by a source. It is widely...
According to the specialness of LED flux measurement, the design of integrated sphere for LED measurement adopts unique optimization, combining high reflectivity diffuse reflector material, which...
With the rapid development of the global optoelectronic industry, LED TESTER is becoming more and more mature, and LED lamps are gradually replacing traditional lamps such...
Introduction In an indoor garden, having a lighting system that is properly balanced is essential to the growth of healthy plants. Photosynthetic photon flux density (PPFD)...
LEDs are everywhere in life, and gradually applied to large -scale high -quality TVs, cars, streets, workplaces and home. In recent years, LED prices have been...
Introduction: Spectrometers are very helpful instruments for examining the characteristics of light in many fields of science and industry. Materials’ composition, structure, and properties may be...
Introduction In the field of optical measurements, the two most important tools for gathering and analyzing data pertaining to light are called radiometers and spectroradiometers respectively....
“The LED is divided into upstream and downstream, which can be said to be a dragon. For new technology development, in the collation in the top...
Plant lighting fixtures are a type of lamps based on application objects. Its irradiation objects are plants, and they are expected to have an expected physiological...
LPCE-2 Integrating Sphere Spectroradiometer LED Testing System is for single LEDs and LED lighting products light measurement. LED’s quality should be tested by checking its photometric,...
Introduction of Integrating Sphere: The integrating sphere is a hollow sphere. The shell is generally made of metal. The inside of the shell is coated with...
Integrating sphere calibration procedures are essential for ensuring accurate and reliable measurements of light. This article provides an overview of the calibration process, including the necessary...
The optical radiation safety test system‘s (EN62471-C) complete band range satisfies the IEC/EN 62471/CIE S009 standard, the IEC/TR 62778 standard, the GB/T 20145 standard, the EU...
The life of LED is still a characteristic of long -term attention. The theoretical life of LED is very long. Like the traditional light source uses...
With the adjustment of epidemic prevention policies across the country to facilitate the travel and life of citizens, the Health and Health Commission has also released...
Semiconductor Solid Lighting (SSL) is a trend of future development, especially today, where global energy is becoming increasingly tense and the climate is deteriorating today. With...
The North American Lighting Engineering Association (IESNA) has recently published the LM-82-12 standard test method. This test method can measure the relationship between the electrical, optical...
SY2036 LED aging and life test rack is fully designed according to the IEC standards, and it can also be designed based on the customer request....
The LSG-1200A compact goniophotometer is used to measure the luminous intensity distribution curve, intensity data, beam angle and other photometric parameters for Chip LED, LED Module, LED Spotlight...
What is spectroradiometer? A spectroradiometer may determine the wavelength and intensity of light from a source. It is also called the led integrating sphere. Spectrometers LPCE-3...
As an emerging light source, LED is very different in its own structure and luminous characteristics compared with traditional light sources. Due to the self-absorption effect...
Standards: Fully meet CIE 177, CIE-13.3 , Optical-Engineering-49-3-033602, and IEEE. The Chroma Meter Specifications: • Spectral resolution: ±0.2nm, Reproducibility: ±0.5nm • Accuracy of chromaticity coordinate (Δx, Δy): ±0.005 • Correlated...
Standards: Fully meet CIE 177, CIE-13.3 , Optical-Engineering-49-3-033602, and IEEE. The Chroma Meter Specifications: • Spectral resolution: ±0.2nm, Reproducibility: ±0.5nm • Accuracy of chromaticity coordinate (Δx, Δy): ±0.005 • Correlated...
What is the goniophotometer？ The goniophotometer is the main measuring equipment for the light distribution performance test of lamps, which can be used to measure the...
LEDLM-80PL LED Lumen Maintenance and Aging Life Test System is designed according to IES-LM-80 and TM-21, it used to test & record the optical and electrical Maintenance for single...
To test and record the optical and electrical maintenance for a single LED or LED module, the LEDLM-80PL System for Testing LED Lumen Aging and Maintenance...
It’s important to run testing on LED aging. Without an aging test, it is impossible to ensure the product’s quality, and unreliable elements will show up...
With the popularity of LED lighting, the photobiological safety testing issues caused by its light radiation have attracted public attention, the most important of which is...
An integrating sphere is frequently used to examine luminaire or light source brightness, chromaticity coordinates, CCT, dominant wavelength, peak wavelength, etc. The traditional integrating sphere is...
Definition of Photobiosafety: Photobiological safety means that the light emitted by various lamps and lamp systems (including various light-emitting devices) cannot have harmful radiation effects on...
Definition of light intensity: Light intensity is referred to as light intensity. The international unit is candela, which is short for CD. Other units include candlelight...
Based on the junction temperature measurement method of high power LED, the ratio of current amplitude to workflow during injection of square wave current pulse into...
Spectroradiometers are efficient devices. They assess products that use the concept of light for functioning. These devices allow you to make the best quality of your...
Sphere Diameters Smaller diameter, lower cost spheres must have smaller utility ports and extraordinarily high throughput. In fact, depending on the light source, the throughput may...
Introduction to integrating sphere An integrating sphere, also called an Ulbricht sphere, is an optical component consisting of a hollow cylindrical cavity with a diffuse white...
Purpose of Integrating Spheres An integrating sphere gathers electromagnetic radiation from a source that is typically external to the optical instrument. This is done for the...
The Goniophotometer is the main measuring device for the light distribution performance test of lamps and lanterns, which can be used to measure the spatial light...
An integrating sphere is a spherical object with a reflective coating applied to its inside surface. Numerous tasks, such as measuring light, measuring reflectance, and homogeneous...
LM-79 and LM-80 are energy efficiency standards approved by IESNA for LED product testing. LM-79 test refers to the photoelectric measurement of solid-state lighting products, mainly...
Two types of photometry are used: spectrophotometer and goniophotometer. The optical characteristics detection of LED mainly includes: luminous intensity test, luminous flux test, spectral characteristics test...
What is solid-state lighting product (SSL) measuring SSL includes LED and oled With the elimination of incandescent lamps and the gradual withdrawal of high-pressure mercury lamps,...
The potential and advantages of LEDs continue to develop. The next five to fifteen years will be a period of development of LED lighting from traditional...
The goniophotometer is an instrument that uses spectrophotometry to perform quantitative and qualitative analysis of substances. It is mainly used for the measurement of the light...
Sunlight is essential for plants, because plants need to rely on sunlight for photosynthesis. We all know that sunlight is a continuous spectral light source, and...
The goniophotometer is an instrument that uses spectrophotometry to perform quantitative and qualitative analysis of substances. It is mainly used for the measurement of the light...
The electro-optical test methods allowed by IESNA Solid State Lighting Products, specifically referred to as LM-79, are jointly developed by IESN and the ANSI Solid State...
1.Introduction It is one of the most important environmental factors required for plant growth. It is not only the energy source in the process of plant...
What is a Goniophotometer? LISUN goniophotometers can be used to examine angle-dependent optical characteristics of LED and SSL products. This includes everything from single-packaged LEDs to...
The ANSI/ASABE S640 standard entitled “Plants (photosynthetic organic) electromagnetic radiation volume and unit” has been released. This work is the first research results released by AsaBe’s...
Goniophotometer Definition of a goniophotometer A goniophotometer is a piece of equipment that will generate an IOS file. An IOS file three-dimensional bubble of the light...
The determination of the luminous internsity distribution involves the use of a co-ordinate system in order to define the direction in which the intensity measurements are...
The photometric center of a lamp or luminaire is the reference point, from which the photometric distance law is applicable. This appendix lists two methods to...
LISUN has been manufacturing integrating spheres for many years. Our Integrating Spheres product line offers a fantastic selection capable of measuring watts, lumens, candela, lux, joules,...
What is goniophotometer definition? LISUN LSG-1890B/LSG-1800A goniophotometer is automatic goniophotometric instrument for luminous intensity distribution measurements with facility for rotating the light source. LISUN LSG-1890B/LSG-1800A uses...
In September 2020, the DLC released the official version of the Grow Light V2.0 standard, which will be implemented on 21st, March, 2021. Prior to this,...
As we all know, UV actually includes 3 bands, from 320nm~400nm, UV-A of low frequency and long wave to 280nm~320nm, UV-B of medium frequency and medium...
Introduction The photoreceptor cells on the retina of the human eye are divided into two types: rod-shaped (circle) cells and cone-shaped (round) cells. The former has...
LED test instruments or LED Lamp Testing Equipment includes • LPCE-2(LMS-9000) High Precision Spectroradiometer Integrating Sphere System. • EN62471-C Optical Radiation Safety Test. • LEDLM-80PL LED...
Introduction A spectroradiometer is an instrument ( a light measuring tool ) used to measure the wavelength and amplitude of the light emitted from the light...
LISUN is a leading manufacturer of spectroradiometers for remote sensing applications. These include geological and spectral remote sensing, crop and soil research, vegetative, forestry and canopy...
If your application requires measurement of a widely diverging beam, an integrating sphere is the best option to consider. An integrating sphere is an optical component...
What is the LED test standard？ Semiconductor light-emitting diode (LED) is a new type of light-emitting body, with high electro-optical efficiency, small size, long life, low...
It is well known that color table and color rendering are two important quantities that reflect the color of light sources. Light sources with different spectral...
1. What are the prevention and control plans and standards for juvenile myopia? 1.1 Adolescent myopia prevention and control program: With the increasing rate of myopia...
The goniophotometer is mainly used to measure the light distribution performance of lamps and light sources. That is, the luminosity and chromaticity value distribution of the...
The standard specifies that the size of the integrating sphere is based on the size of the lamp under test. But experts explain that for many...
The myopia rate of primary and secondary school students remains high. More and more people are advocating to pay attention to the improvement of students’ eyesight...
Foreword: With the rapid development of the LED industry, the application range of LED lamps is becoming wider and wider, and there are more and more...
Definition of light distribution curve: It refers to the light intensity distribution of light sources (or lamps) in all directions in space. On the metering plane...
Application of portable spectroradiometer in the Detection Direction of LED Lighting Fixtures Since the invention of LED lamps, their advantages such as high brightness, low power...
Light-emitting diodes are not just a simple turn-on and turn-off mechanism. In addition to simply emitting a white light, LEDs also have the ability to emit...
Before calculating the ErP energy efficiency rating method, we must first determine whether the lamp under test is a directional light source or a non-directional light...
LED plant growth lamp is an artificial light source that uses LED (light emitting diode) as the luminous body to meet the lighting conditions required for...
Goniophotometer is mainly used to measure the light distribution performance of lamps and light sources, that is, the luminosity and color measurement value distribution of the...
Goniophotometer is mainly used to measure the light distribution performance of lamps and light sources, that is, the luminosity and color measurement value distribution of the...
Spectroscopy is a method of identifying substances and determining their chemical composition and relative content based on their spectra. It is an analytical method established on...
Goniophotometer is mainly used to measure the spatial distribution of light intensity and color space of lamps, and output various measurement reports according to the test...
In recent years, semiconductor lighting technology has developed rapidly, and subsequently semiconductor lighting lamps have also been greatly developed. This requires corresponding testing theory, testing technology,...
There are several common goniophotometers for light distribution. The difference between them lies in the geometric shape of the measurement, that is, how to collect photometric...
Introduction: The portable spectroradiometer is a spectrum analysis instrument based on XRF (X Ray Fluorescence) spectrum analysis technology. It is mainly composed of X-ray tube, detector,...
An integrating sphere is one of the most important instruments in the measuring of light. An Ulbricht sphere is a device that catches all of the...
Goniophotometer is the main measurement equipment for the light distribution performance test of lamps and luminous. It can be used to measure the spatial light intensity...
Integrating spheres spectrophotometers are optical devices often used to compute the optical characteristics of a turbid medium, i.e., reflectance and transmission. In many areas of science,...
Standards: Fully meet CIE 177, CIE-13.3 , Optical-Engineering-49-3-033602, and IEEE. The basis of spectroradiometer measurement is to measure the correspondence between optical radiation and wavelength. Generally speaking, the direct result...
Goniophotometer is a device used to measure the light distribution performance of lamps. Goniophotometer measures the spatial light intensity distribution of lamps or light sources, total...
Photometers and spectrophotometers instruments are well-suited and well-established for measuring moisture, oil/fat, and other easily distinguishable parameters in a wide range of applications. spectrophotometer derived from these...
Goniophotometer definition: Goniophotometer is used to measure the spatial light intensity distribution and various photometric parameters of LED lamps/street lamps, indoor and outdoor lighting lamps. Including...
According to CIE127, EN13032-1 and LM-79-19, there two ways to test lighting lamps for photometric parameters: Spectroradiometer & Integrating Sphere and Goniophotometer System. What’s difference between...
The full name of CIE 127-2007 is<MEASUREMENTS OF LEDS>.This Technical Report has been prepared by CIE Technical Committee 2-45 of Division 2 “Physical Measurement of Light...
The full name of CIE 177_2007 is Color Rendering of White LED Light Sources. It was prepared by CIE Technical Committee 1-62 of Division 1 “Vision...
On 5th, December, 2019, the European Commission officially announced the new ErP Regulation (EU) 2019/2020 and Energy Efficiency Labelling Regulation (EU) 2019/2015 for lighting products, which will...
Abstract The improvement and spreading of the LED filaments lamps requires reliable and accurate methods and instruments for junction temperature measurement. Based on the forward voltage...
IESNA Illuminating Engineering Society of North America and ANSI American National Standards Institute jointly issued ANSI/IES LM-80-15 IES Approved Method On June 26, 2015: Measuring Luminous...
LISUN will irregularly update the software of LSG-1800BCCD/LSG-1700BCCD/LSG-5000CCD. However, since each spectroradiometer in the system has its own independent hardware data file, we need to back...
LED lamp aging test standards: Generally speaking, as a green energy-saving LED lamp, if the performance test is reduced before use, there will be a certain...
With the rapid development of the automobile industry and the improvement of driving speed, it is very necessary to establish various standards and regulations to regulate...
According to the provisions of IESNA-LM-79-08, both the integrating sphere system and the goniophotometer can test the luminous flux and color parameters of SSL products. In...
LM-79-19 English Version Free Download: Click Here LM-79-19 Spanish Version Free Download: Click Here LM-79-19 Chinese Version Free Download: Click Here ANSI (American National Standards Institute)...
LM-79-19 English Version Free Download: Click Here LM-79-19 Spanish Version Free Download: Click Here LM-79-19 Chinese Version Free Download: Click Here This article tries to make...
Fair: LED Expo New Delhi Date: 2019/11/14-2019/11/16 City: New Delhi Exhibition Hall: India Expo Centre, Great Noida, India Organizers: messe frankfurt Booth of LISUN: L45 Here...
Fair: HKTDC Hong Kong International Lighting Fair 2019 (Autumn Edition) Date: 2019/10/27-2019/10/30 City: Hong Kong Exhibition Hall: Hong Kong Convention and Exhibition Centre Organizers: Hong Kong...
Fair: LED Expo New Delhi Date: 2019/11/14-2019/11/16 City: New Delhi Exhibition Hall: India Expo Centre, Great Noida, India Organizers: messe frankfurt Booth of LISUN: L45 LISUN...
Fair: HKTDC Hong Kong International Lighting Fair 2019 (Autumn Edition) Date: 2019/10/27-2019/10/30 City: Hong Kong Exhibition Hall: Hong Kong Convention and Exhibition Centre Organizers: Hong Kong...
Recently Saudi Arabia released new LED standard SASO 2902 for energy efficiency, functionality and labeling requirements for Lighting products. We have got the SASO 2902 in 2017 which is draft...
If you need to disable the 64bit digital signature enforcement of the computer, follow the steps: For Win 7 system There are two ways and you...
LISUN engineer went to Egypt in December 2018 to provide on-site installation & training services for customers there. During the period, we held a lighting testing...
LISUN engineer went to Iran in December 2018 to provide on-site installation & training services for customers there. And held Lighting Testing Technology Salon on 25th...
LISUN engineer went to Saudi in December 2018 to provide on-site installation & training services for customers there. During the period, we held a lighting testing...
In optical testing, the measurement of luminous flux and color temperature are essential. There are two test equipment for the measurement: Integrating Sphere Testing System and Goniophotometer. Here we...
The main parameters of LED lamps and lanterns include: A: Electric parameters: voltage, current, lamp power, power factor, harmonic, etc B: Colorimetric parameters: correlated color temperature,...
In recent years, the CE marks are more and more widely used in the market of European economic area (Member states of the European Union and...
LED package is mainly to provide a platform for LED chips, so that LED chips have better performance of light, electricity and heat. Good packaging can...
LISUN has participated in this India lighting exhibition for four years and has developed a large market in India. We will continue to participate in the...
LED has the features of long time. According to different power drivers and use conditions, the life of LED can be up to 50,000 hours or...
According to the requirements of the LM-79 optical testing standards applicable to the widest range in the world, although there are many photometric measurements for light...
Energy Star certification (Energy Star certification) is a certification which can adapt to the requirements of the United States Energy Department. In addition to UL, FCC...
With 4.0 concepts emerged on the industry, the traditional mind of manufacturing is experiencing unprecedented impact, integration and upgrade of industrialization and information will be the...
In general, LED can be used for more than 50000 hours, and some manufacturers are promoting their LED to operate for about 100000 hours. The main...
We know that the life of LED is closely related to its junction temperature. The key to prolonging its life is to reduce its junction temperature....
ISO 17025 is the international standard for laboratory accreditation services; the latest version is released in May, 2005. The full name of ISO/IEC 17025:2005-5-15 is Accreditation...
With the rapid development of LED lighting market, the competition becomes more and more intense. So more and more LED lighting manufacturers began to focus on...
Color difference is an important indicator of lighting lamps color performance. Color difference is the difference between computer calculation forma and the target standard, calculated by...
LED luminaires are this kind of device which can transmit, distribute, and change the light distribution of light source. They are becoming the main products of...
IEC 60825-1: 2007 is a standard issued by the European Union, applicable to safety of laser products emitting laser radiation in the wavelength range 180 nm...
On January 31, 2018, Lighting Poland 2018 arrived on schedule. LISUN has already prepared well for this exhibition. Our booth address is Hall 4 Booth C25...
Spectrum is the relative distribution of wavelength and light intensity. The spectrum of LED is generally monochromatic LED, such as blue LED with a peak wavelength...
LED Expo Delhi is a 3 day event being held from 30 November to the 2 December 2017 at the Pragati Maidan in New Delhi, India....
In order to meet the demands of the lighting market for handle spectrometer, Lisun launches LMS-6000 Portable CCD Spectrometer recently. Compare with Lisun CHROMA-2 Pocket Chroma Meter, LMS-6000...
Interlight Moscow is held from November 7 to 10, 2017, Interlight Moscow is not only the biggest show in Russia and Eastern Europe covering the whole...
Thailand International Lighting Fair is the most influential international professional lighting fair in Thailand. Fair Dates: 16-18 November 2017 Fair Venue: Bangkok International Trade & Exhibition...
Interlight Moscow powered by Light + Building is the only trade fair in Russia and the CIS covering the whole range of products relating to above stated...
The Hong Kong International Lighting Fair has become the largest industry exhibition in Asia, and the second largest in the world. LISUN participates this exhibition every...
The Istanbul Lighting Exhibition is the only professional LED application exhibition in Turkey, where all the players in the lighting industry come together under a same...
HKTDC Hong Kong International Lighting Fair (Autumn Edition) 2017, organized by the Hong Kong Trade Development Council at the Hong Kong Convention and Exhibition Centre (HKCEC)...
For lighting purpose, the luminaries playing a important role. A good lighting design is achieved by the choice of appropriate luminaires. The nature of the light...
Istanbul Light is an international platform, where all the players in the lighting industry come together under a same roof and where the latest technologies and...
In September and October 2013, Chairman Xi put forward a major initiative of building “The Silk Road Economic Belt” and “The 21st Century Maritime Silk Road” (referred to...
There is a wide range of goniophotometers on sale in the market, including central rotation type, rotation mirror type, double mirror type and so on. How to choose...
Intelligent Lighting is the distributed lighting control system by using internet of things technology, wired/wireless communication technology, power line carrier communication technology, and embedded computer intelligent...
Goniophotometer is mainly used to measure the light performance of luminaries and light source, it mainly could measure the light intensity distribution curve, light intensity data,...
Light environment is one of the indispensable and important physical environmental factors for plant growth and development. LED plant lighting lamp is a kind of artificial...
LED adopts metal material, however, OLED uses organic material. Their emitting principles are the same, the difference is that OLED does not need backlight, because it...
LED blue light hazard is to evaluate the photochemical damage of the blue radiation to the retina. In practice, we may observe the light source or...
IES LM-79-08 Approved Method: Electrical and Photometric Measurements of Solid-State Lighting Products. IES LM-79 standard is mainly for photoelectric performance measurement. Generally it is for whole...
The most critical factor that affects the quality of lighting is the luminous distribution performance of lamps. Using scientific testing methods and selecting the appropriate test...
Definition: Means luminaries or light sources emit light intensity distribution in space. It can record the luminous flux of luminaries, light quantity, power, power factor, the...
Nowadays, with the development of LED industry, its technology continues to be mature and has widely applied at home and abroad. Comparing to mature markets in...
LED street lights become more and more popular in recent years, but a few days ago, the American Medical Association (AMA) just issued an official statement,...
LED heat dissipation has become more and more attention by people, this because its Lumen decay or its life is directly related to its junction temperature,...
According to IESNA-LM-79 standard, Goniophotometer is used for light intensity distribution and flux test. Accordingly, Lisun Group is goniophotometer manufacture introduced several different types Goniophotometer, the...
India lighting market develops rapidly, research reports point that LED lighting market scale will reach 1.14 billion dollars, growth 47.1%. India government intends to make India...
With the fast development of electrical industry in China, manufacturing enterprises scale grows constantly, international electric safety standards apply more and more widely. Lighting industry standards...
IESNA-LM-80 (Measuring Lumen Maintenance of LED Light sources) is an approved method by Lighting Engineering Association of North America (IESNA) for the third generation SSL products;...
IESNA-LM-79 (Electrical and Photometric Measurements of Solid-State Lighting Products) is a standard made by Illuminating Engineering Society of North America; this standard put forward the measurement...
The lighting industry practitioners must be familiar with IES file. Firstly introduce IES, IES is short for Illuminating Engineering Society of North America. I.E.S is founded...
LED has the features of long life, but with the different working condition and drive current, its life will be different, but generally the life will...
LED is short for light emitting diode. It is one kind of semiconductor diodes, which can convert electrical energy into energy. With the technology development, LED...
Nowadays, there are two main categories of LED light sources classified according the forms on the market, one is COB integrated light source directly combined of...
Lisun LMS-6000 Portable color spectroradiometer is the only one used telephoto optical system in portable spectrometer spectral radiometer, spectral resolution is 0.2nm, which can measure LED wide...
IES TM-30-15 is a document approved by the Illuminating Engineering Society (IES) that describes a method for evaluating light source color rendition. The method encompasses several...
LED manufacturers must learn some basic luminaries’ parameters such as brightness, spectrum and color temperature and so on as standard to identify pros and cons. We...
IEC/EN 62471 is to assess relative optical radiation safety of different lamps and lamp system. It fully replaces IEC/EN60825 regarding the requirements of LED products energy...
At the end of October 2016, Lisun attended lighting fair in as in previous years. Hongkong International Lighting Fair has been an ideal platform for LED...
In October 5th-7th 2016, New Delhi LED lighting exhibition held in New Delhi, the capital of India. As one of India’s largest LED lighting exhibition, New...
SSL (Solid State Lighting) product’s color quality is very important; people pay more and more attention to it. CRI already has 40 years history. CIR is...
Different color temperature will give us a different feeling. In a different environment with the same brightness, the object’s color we can see will be a...
Now, the led COB package, in fact, we can know that most of the COB package, including Japan COB packaging technology, they are based on the...
Lisun has a lab certer in Shanghai. Are you worry about the quality of LED that you purchase from China? From today, you can ask your...
When LEDs arrived on the market, their tremendous efficiency and money saving potential changed the playing field and lumens, lux and candela finally became obsolete metrics...
The LED stroboscopic effect actually have two concepts: One is strobe which mean the depth of light flux fluctuations, the more violent fluctuation, the depth of...
IEC/EN62471 is the European Union’s testing standards for laser products (including LED). IEC/EN 62471 is designed to evaluate the optical radiation hazards associated with different lamps...
Lisun will come with professional technical team to attend 2016 Germany Frankfurt Lighting Fair( Light + Building) dated on 13th Mach ~18th March, 2016. This time...
The 2015 New Delhi Autumn LED Expo was successfully held during 3th December~5th December. As one of India biggest exhibition, this exhibition main relate different lighting...
CIE has recently published the first international measurement standard for LED Lamps, LED Luminaires and LED Modules, ie. CIE S025(http://div2.cie.co.at/?i_ca_id=563). CIE Division 2 will present a...
According to CIE, EN and LM-79(Clause 9.1) etc standards, spectroradiometer integrating sphere system is used for all kinds of light source photometry parameters test. The following...
LED coated with phosphor powder on the LED chip to achieve white light emission. There are three main methods to realize white light with phosphor powder,...
As well as we know that for the LED luminaires lumen test, the CIE121: 1996 Clause 6.1, CIE127-2007 Clause 6.2 and IES-LM-79-08 Clause 9.0 are mentioned...
It is the second time we have attended the fair, and it is a successful and wonderful fair. Lisun’s booth attracks numerous people’s visit.
During the exhibition, Lisun showed its main instruments which attracted many customers to stop and talk. Among them, there are not only many old customers hope...
Goniophotometer measures light intensity performance measurement of luminaries and light source, which is the photometry value in different directions in space and color distribution. Goniophotometer should...
USA Environmental Protection Agency(EPA) and Department of Energy(DOE) successively released Energy Star and Lighting Facts Standards for LED Luminaires/Bulb from 2010, which makes relevant industry persons...
As in previous year, Lisun and its instruments appeared at booth ED-A01 of Hong Kong International Lighting Fair (Autumn Edition) during 27th October to 30th October....
Light object by the lighting source and standard source(Generally, sunlight is as the standard source), the degree consistent with color is the color fidelity degree, represented...
LED testing equipment mainly has Goniophotometer and Integrating Sphere Spectroradiometer System. Goniophotometer is used for light intensity distribution measurement; integrating sphere spectroradiometer system is used for flux and colorimetric...
OLED (Organic Light Emitting Display) is a new generation of flat panel display technology after LCD, LED, CRT and PDP (Plasma Display Panel). It has significant new...
LISUN can provide very fine Photo Detectors. They are NIM traceable (directly compared with NIM standard head) and is validated to PTB of Germany. Photo Detector...
At present, LED and LED lamps and lanterns can’t achieve ideal service life due to the reason of the performance of LED. The LED junction temperature in...
When choosing the instrument to purchase or use for the application, it is very important to understand the types of instruments available for measuring color. A colorimeter or spectrophotometer can...
Lisun attended Hongkong Lighting Fair dated 27th October to October 30th 2012, during the exhibition, Lisun showed many high excellence testing equipments to visitors, like Goniophotometer,...
Fair: Hong Kong International Lighting Fair 2012 (Autumn Edition) Date: 2012/10/27-2012/10/30 City: Hong Kong Exhibition Hall: Hong Kong Convention and Exhibition Centre Organizers: Hong Kong Trade Development...
When you measure the photometric and chromaticity properties of optical system, it must be under the uniformly prescribed light source, the test result can be compared...
In order to expand its business, Lisun decides to move Lisun Electronics Shanghai to a new office. Lisun built a high level products show room &...
The U.S. Government issued her LED test standards IESNA-LM-79-08. This approved method is a guide developed for the measurement of Solid State Lighting (SSL) products such as LED...
Lisun updated the Spectrophotometer of LMS-5000 software. The new version software updated serval function to make the customer have a much experience. LMS-5000 is a high accuracy...
1.LED In addition to the semiconductor lasers, when the current motivates the semiconductor diodes can emit the optical radiation. Strictly speaking, the term LED should be...
Our manufactory will attend the Guangzhou International Lighting Exhibition on June 9th~12th, 2011 About LISUN: it is lead in CFL and LED test instruments, main products are EMC Test System,...
With LED technology development, LED applications in market are more and more wide. UV-C LED germicidal disinfection applications market also reaches a new height in 2016,...
LED is not only a semiconductor device, but also a light source. It has the advantage such as high light output, low consumption and easily drove....
Our manufactory will attend the Guangzhou International Lighting Exhibition on June 9th~12th, 2009. By then we will show our new products such as RoHS Test Equipment (Energy Dispersive...
Lisun Hong Kong, Shanghai and China Factory office will be off to enjoy the Chinese New Year Holiday from 24th, Jan to 1st, Feb. If you...
During October 12nd to 15th, Lisun will exhibit in the 2008 Hong Kong Global Sources Fair in booth# 11M30 (Hall 9&11) near the Hong Kong International...
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