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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This document provides adequate and uniform methods for determining and reporting the photometric characteristics of indoor fluorescent luminaires. It describes characteristics of luminaires and some components, as well as the requirements for the thermal environment and proper control of the electrical and mechanical systems involved in testing. This document is also concerned with general test conditions and the testing procedure best suited for achieving accurate and consistent photometric results.
LISUN following instruments fully meet ANSI/IES LM-41 Photometric Testing of Indoor Fluorescent Luminaires:
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.
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: Luminous intensity is the core photometric parameter that characterizes the luminous flux output of a light source per unit solid angle in a specific direction,...
Abstract: The Type C goniophotometer system is core equipment for optical performance testing of lighting products. It meets the strict requirements of the latest standards such...
Abstract: The LM-79 Moving Detector Goniophotometer (Mirror Type C) is core equipment for optical parameter measurement in the lighting industry, specially designed for full-space luminous intensity...
Abstract To test light intensity with laboratory-grade precision requires systematic compliance with international photometric standards and advanced goniophotometric instrumentation. This paper presents a comprehensive technical analysis...
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: The instrument for measuring intensity of light is a core device in the field of illumination optical detection. As a high-precision representative of such devices,...
Goniophotometer testing is the most prevailing way of attaining total three dimensional photometric characterization of luminaires and light source. In contrast to the simplified measurements which...
Type C Goniophotometer systems are used in preference in road and out light testing since they provide a convenient combination of geometry, angular coverage, and alignment...
One of the major requirements of assessing LED luminaires deployed in the commercial, industrial, and outdoor setting is an accurate photometric measurement. An LED goniophotometer will...
Modern lighting design, compliance and performance validation require accurate assessment of luminous intensity distribution. The goniophotometer operation is the basis of this assessment as they allow...
It is equally crucial to know the way light is scattered in space as it is that the luminaire produces a specific amount of light. In...
A correct photometric analysis not only involves optical sensors but also on the execution of measurement geometry in the process of testing. Goniophotometers are special equipment...
Proper testing of performance of lighting is the key to product safety, efficiency and acceptance regarding regulations in the global market. Goniophotometry is of a central...
The current LED lighting systems no longer have bare power and brightness values in printed packets or packaging. End users require real-life lighting behaviour, i.e. what...
Professional lighting evaluation requires correct measurement of luminous distribution and beam shape, light intensity distribution, uniformity and directional output. In current illumination systems, total lumens are...
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 With the rapid development of lighting technology, various lighting products such as LED light sources, plant growth lights, and HID light sources have increasingly high...
Abstract Goniometer light measurement serves as the cornerstone of accurate optical performance evaluation for solid-state lighting (SSL) products. With the 2025 release of ANSI/IES LM-79-24, the...
Introduction In the rapidly advancing field of LED lighting, the LED Tester has become an essential tool for ensuring that light sources meet rigorous international standards...
Abstract In the field of optical measurement, two key instruments—LISUN’s vertical goniophotometer and the standard illuminance meter—play indispensable roles. Although their functions and applications differ significantly,...
Introduction In modern technology and industry, the precise measurement of light intensity plays a pivotal role. Whether in lighting engineering, optical equipment manufacturing, or scientific research,...
Introduction Luminous intensity measurement is a critical parameter in evaluating the performance of lighting systems, ensuring compliance with standards, and optimizing the design of lighting products....
In today’s world, the precise measurement of lumens is crucial in determining the efficiency and effectiveness of lighting systems. With the rise of LED technology and...
Abstract: The measurement of light intensity is crucial in the development and evaluation of lighting products, particularly in meeting international standards for photometric testing. This paper...
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,...
Abstract: Luminous intensity measurement plays a critical role in the performance evaluation of lighting products, and the use of a full-space distribution goniophotometer is an essential...
Abstract Understanding what is light intensity is crucial for industries involved in designing, manufacturing, and testing lighting equipment. Light intensity, a fundamental photometric property, determines how...
Abstract This paper presents a comprehensive analysis of the performance characteristics of bulb lights, PAR lamps, and LED tubes through the LISUN LSG-6000 LM-79 Moving Detector...
Abstract Light intensity, a key parameter in lighting design and testing, plays a significant role in the development of lighting products that meet international standards such...
The accurate measurement of light intensity distribution is crucial in the development and quality assurance of lighting products. The LISUN LSG-6000 LM-79 Moving Detector Goniophotometer (Mirror...
Introduction LED light testers are crucial in evaluating the performance and quality of LED products. Among these testers, the LISUN LM-79 Moving Detector Goniophotometer stands out...
Luminous intensity is a critical photometric quantity in lighting technology, representing the amount of light emitted by a source in a particular direction, measured in candelas...
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...
Distributed photometers are essential measurement devices used to test the photometric performance of lighting fixtures. They are categorized into vertical and horizontal types and are capable...
Photometric Testing is an important step in ensuring the intensity and distribution uniformity of street lights. The luminance measurement is a commonly used testing instrument that...
Road lighting testing is an important step in ensuring the intensity and distribution uniformity of street lights. The Type-C goniophotometer is a commonly used testing instrument...
Illumination is one of the most important factors impacting human visual perception. The photometric performance of lighting fixtures and the luminous flux of LED fixtures are...
LED, as a new type of lighting source, has many advantages such as high efficiency, energy-saving, and long lifespan, gradually replacing traditional lighting sources. However, how...
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...
Introduction: Airfield safety and efficiency rely heavily on well-lit runways and taxiways. To ensure that pilots have the best possible vision during takeoff, landing, and taxiing,...
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...
Lighting fixtures play a crucial role in the field of lighting. To ensure the lighting effect and quality of the fixtures, it is necessary to test...
Introduction: A rising problem, light pollution has an impact on both urban and nature settings. It describes the brightening of the night sky and the disturbance...
Introduction: When it comes to the optical characterization of lighting components, goniophotometers prove to be invaluable tools. With the use of these instruments, producers and researchers...
Introduction: Virtual reality (VR) development has been very beneficial to many other industries, including but not limited to the gaming business, the entertainment industry, the building...
Introduction: Measurement and characterisation of visible light sources is a typical use for goniophotometers. However, their functionality goes beyond what the human eye can see, allowing...
Introduction: A goniophotometer is a high-tech device for determining the angle of illumination from a given source. It is vital in the fields of lighting design,...
Goniophotometers are vital tools for determining the dispersion of a given light’s output. They are helpful for characterizing and analyzing lighting fixtures, lamps, and luminaires because...
Introduction Plant culture has found several applications for the powerful technique of goniophotometry, which measures and describes the characteristics of various sources of light. Because of...
Introduction The use of charge-coupled device (CCD) goniophotometry has greatly advanced the study of light. Thanks to developments in charge-coupled device (CCD) technology, today’s goniophotometers can...
Introduction Testing for quality control and compliance are very important aspects of the manufacturing and verification of lighting. In order to ensure that the quality of...
Introduction Goniophotometry is a standard method for describing the light field around a given point source. It’s vital in lots of different fields, such as lighting...
Introduction The assessment and characterization of lighting systems relies heavily on goniophotometric data. But there are difficulties along the way. There are a number of variables,...
Introduction Goniophotometry is a powerful method that accurately measures and characterizes the distribution of light inside a specific interior environment because to its ability to measure...
Introduction Goniophotometry is a powerful method used extensively in the lighting industry to measure and evaluate many different aspects of light. The goniophotometer’s ability to measure...
Introduction Automotive lighting systems are vital to ensuring the safety of drivers, passengers, and pedestrians on the road since they are responsible for providing enough illumination...
Introduction Measurement and characterisation of the light distribution from a wide variety of sources may be accomplished with the help of goniophotometry, a method that has...
Introduction Because it offers specific information on the manner in which various types of light sources disperse their brightness, goniophotometry is a vital approach for determining...
Introduction Goniophotometry is a tried-and-true technology that has been used for a good number of years as a means of measuring and describing light. In order...
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,...
Introduction Goniophotometers are high-tech instruments that can measure the properties of light dispersion with a high degree of accuracy. Calibration is needed for trustworthy measurement findings....
Introduction: Goniophotometry is a very effective method for determining the angular distribution of a light’s emission. It’s helpful for a wide range of lighting applications since...
Introduction Goniophotometry is a very effective measuring method that is crucial to the LED characterisation process. It allows for the accurate assessment of a wide range...
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 In the field of photovoltaics, goniophotometry, which is a standard technique for measuring the intensity of light, has shown to be very beneficial. Measurements using...
Introduction Goniophotometers are a vital instrument for lighting researchers, including scientists, engineers, and designers who are trying to advance the state of the art in lighting....
Introduction In order to accurately represent the geographical distribution of light coming from a variety of sources and fixtures, the field of lighting places a significant...
Introduction Measurement and analysis of light sources and lighting fixtures is impossible without the use of goniophotometry and photometry. Light may be measured in two distinct...
Introduction Goniophotometry is a tried-and-true approach that may be used to evaluate the spatial dispersion of the output of a luminaire. Because it enables accurate characterization...
Introduction The lighting of an exhibition is one of the most important factors in drawing people in and making them feel immersed in the work on...
Introduction Without appropriate consideration for industrial lighting design, it is impossible to construct workplaces that are both safe and effective. Goniophotometry is a precise means of...
Introduction Marine life needs certain lighting conditions, and aquarium lighting plays an essential role in achieving both aesthetic and ecological objectives. Marine life can only survive...
Introduction Goniophotometers are an essential tool for verifying that buildings meet lighting codes and are certified as safe. Manufacturers, regulators, and other stakeholders may evaluate the...
Goniophotometers are desktop systems used for measuring light intensity distribution, light flux, and color. This easy-to-operate system combines the functions of a goniophotometer for measuring the...
Introduction The visibility of urban areas, as well as their safety and security, are significantly dependent on the quality of their street lighting systems. Goniophotometry is...
Introduction Horticultural research, greenhouse cultivation, and indoor farming may all make significant strides forward with the help of specialized horticultural lighting. The precise measurement and analysis...
Introduction By giving meticulous attention to the design of a building’s lighting, one may increase not only the building’s aesthetic value but also its functionality and...
Introduction In the field of lighting design, goniophotometry is an equipment that is vital since it allows for reliable measurement and analysis of the features of...
Introduction Goniophotometric Measurements are an essential instrument for illuminating both interior and exterior spaces. The use of goniophotometry to assess and enhance the performance of lighting...
I. The Functions of a High Precision Goniophotometer High Precision Goniophotometer have the following functions: Testing the light intensity distribution curve, light intensity data, beam angle,...
Introduction As we move towards a more sustainable future, lighting designers are more concerned with developing ecologically friendly and low-energy lighting options. Sustainable lighting design relies...
Distribution gonio photometers typically come in two commonly used types: Lamp Turning Gonio Photometers and Mirror Turning Gonio Photometers. So what different report formats can their...
Introduction In the field of lighting measurement, goniophotometry is an important approach since it is used to properly quantify the angular distribution of the light produced...
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...
Introduction Goniophotometry is a common method of measuring in the study and design of artificial lighting. It allows for a precise evaluation of the light’s angular...
Goniophotometer is also know as luminous intensity measuring device, is divided into vertical goniophotometers and horizontal goniophotometers. Goniophotometer is the main measuring equipment for light distribution...
Introduction Goniophotometry is a specific way of measuring that is an essential component in the process of designing lighting systems with humans in mind and then...
LSG-1700 goniophotometer is an automatic goniophotometric instrument for luminous intensity distribution measurement with facility for rotating the light source. It is for industrial laboratory photometric data measurement of...
Introduction Goniophotometry is an effective measuring method that is vital to the study of luminaire deterioration and aging. The light output, light dispersion, and energy efficiency...
Introduction In the process of designing and evaluating lighting systems for automobiles, the specialized measurement technique known as goniophotometry plays an extremely essential role. The automotive...
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 Goniophotometers are high-tech instruments that are used to precisely measure and characterize the light dispersion emanating from a certain light source. These pieces of equipment...
According to Double end fluorescent lamp of IEC 60081 (GB/T10682) and the single-ended fluorescent lamp of IEC60901 (GB/T17262), ANSI C78.81 and ANSI C82.3, DYJ Adjustable Reference Standard Ballast is used...
Introduction Lighting designers that have knowledge in a multitude of fields, such as architecture, automotive, horticulture, and others, are very useful to their respective businesses. It...
Reliable photometric measurements are becoming more and more important in the rapidly developing area of lighting technology. The LM-79 Moving Detector Goniophotometer is revolutionizing the field...
What is type C goniophotometer definition? LSG-6000 Moving Detector Goniophotometer (Mirror Type C) was manufactured by LISUN completely meets LM-79-19, IES LM-80-08, COMMISSION DELEGATED REGULATION (EU) 2019/2015, CIE-121, CIE S025, SASO 2902, IS16106...
What is type C goniophotometer definition? LSG-6000 Moving Detector Goniophotometer (Mirror Type C) was manufactured by LISUN completely meets LM-79-19, IES LM-80-08, COMMISSION DELEGATED REGULATION (EU) 2019/2015, CIE-121, CIE S025, SASO 2902, IS16106...
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...
A LM-79 goniophotometer is an instrument for measuring the light reflected off an object at various viewing angles. It is somewhat considered like integrating sphere spectrophotometer....
What is type C goniophotometer definition? LSG-6000 Moving Detector Goniophotometer (Mirror Type C) was manufactured by LISUN completely meets LM-79-19, IES LM-80-08, COMMISSION DELEGATED REGULATION (EU) 2019/2015, CIE-121, CIE S025, SASO 2902, IS16106...
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...
Since the birth of the world’s first semiconductor light emitting diode in the 1960s, LED lighting has been known as the light of hope in the...
Goniophotometers are tools used for evaluating the luminous flux, otherwise also known as the brightness of various types of equipment. An LM-79 LM moving detector goniophotometer...
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...
Goniophotometers The method of measuring angular distribution of light is termed as gonio photometry. A photometric device combining photometer and a goniometric motion stage to measure...
Traditional photometry laboratories are no longer in use in the modern world. A new level of complex instruments is required for better results. This is so...
The LISUN goniophotometer is an optical tool. It is used to gauge the amount of light present at various locations across a single area. It is...
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...
Goniophotometers are a devices used to test the luminosity of other devices and appliances. This can help ensure the quality of of the devices to be...
A goniophotometer is a tool used to determine an instrument’s luminosity. It does this by evaluating the 3D curve of the light intensity distribution. LISUN’s goniophotometer-...
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 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...
LED lighting products are rapidly replacing traditional lighting products due to their superior luminous performance and high efficiency and energy saving. With people’s continuous pursuit of...
What is type C goniophotometer definition? LSG-6000 Moving Detector Goniophotometer (Mirror Type C) was manufactured by LISUN completely meets LM-79-19, IES LM-80-08, COMMISSION DELEGATED REGULATION (EU)...
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...
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...
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...
Goniophotometer is a device that serves many purposes to test products that utilize light energy. This device can be used to get photometric values and led...
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...
A Goniophotometer is a device used for measuring the light emitted from an object at multiple angles. Goniophotometers can measure the properties of light that 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...
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...
Photometry LISUN is an independent lighting and optical test laboratory for testing LEDs, lamps, luminaries, displays, signs, and vehicle lighting. Photometry is the modern science used...
Introduction LSG-6000 goniophotometer is manufactured by LISUN. LISUN manufactures an LSG-6000 goniophotometer. It can measure all lighting sources, LED, Plant Lighting or HID luminaires such as...
Goniophotometer A goniophotometer is a measuring device. It is used to measure directional light distribution characteristics in lamps and luminaires. It collects photometric data from different...
The strength or quantity of light that a light source can produce is known as light intensity. The light intensity is the amount of power produced...
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...
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...
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...
A goniophotometer is a device that combines the functions of a photometer with those of a goniometric motion stage to create a single instrument. This process...
Goniophotometers are devices that may be used to measure the characteristics of light produced by a light source, such as color, intensity, and wavelength. This provides...
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...
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...
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...
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...
1. Luminaire rotating distribution mirror goniophotometer: Goniophotometer adopts the measuring principle of static detector and rotating lamp to realize the measurement of light intensity distribution in...
The goniophotometer is suitable for studying the angular spatial radiation properties of big LED modules, lighting goods, and traditional luminaires. Working with a photometer as a...
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...
In this day and age, traditional photometry laboratories are no longer in operation. To achieve a complete characterization of LED-based luminaires, a new degree of complexity...
Background theory You may use various photometric parameters to assess light sources through a goniophotometer, including the light flow, luminous intensity, and spectrum distribution. Luminous flow...
Introduction The emission of a light source is often represented using the far-field luminous intensity distribution. It is now challenging to calculate the conventional limiting photometric...
It offers new difficulties for luminance measurement , especially in developing new sources and new lighting technologies. LISUN has therefore created several goniophotometers using different test...
LM-79 is a standard defining how to test the performance of an LED light or fixture. An LM-79 test is conducted at a time and a...
In photometry, the light power measurement is performed using two different instruments: a goniophotometer and an integrating sphere. Both have outstanding characteristics that make them suitable...
An optical goniometer is an instrument that measures an angle or allows an item to rotate to a certain point. The former term applies more in...
Photometry is a method that estimates the concentration by measuring wavelengths of light of organic and inorganic compounds in a solution. Photometric measurement is critical for...
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...
A goniophotometer is a test device that measures the amount of light emitted from a light source when seen from various angles. The term goniophotometer is...
A goniophotometer is a device used to determine the amount of light emitted by an item at various angles. The usage of goniophotometers has increased in...
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 LM-79 is the North American Lighting Association’s standard for test methods for LED products. The LM-79 is an electrical and photometric method for solid state...
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...
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...
The full name of EN13032-1 is Light and lighting Measurement and Presentation of photometric data of lamps and luminaires. It is edited by CEN in 2004....
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...
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...
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...
In the first half of 2018, LISUN sold two Big Size Type C Goniophotometer: LSG-3000B Moving Detector Goniophotometer, one set of them has been shipped to...
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...
Use Integrating Sphere Spectroradiometer System to test color parameters for light source and luminaries and use Goniophotometer System to test luminous intensity, which is the measurement...
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...
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...
The LED Expo Delhi is one of the most influential exhibition for professional lighting products and technology, it is a 3 day event being held from...
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....
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,...
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...
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,...
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...
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 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...
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...
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...
The ballast (resistor ballast) is a device for limiting the flow of sunlight and generating instantaneous high pressure. Following is some difference between the electronic ballast...
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...
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...
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...
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....
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...
Goniophotometer is mainly used for measuring photometric characteristics of luminaries and light source; that is luminaries laser photometric and colorimetric value distribution in different spatial directions....
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...
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,...
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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