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
LEDs and Luminaire Test Solutions
LM-79 and LM-80 Test Solutions
LED Driver Test Solutions
Household Appliances Test Solutions
Mobile and Network Test Solutions
Automotive Electronics Test Solutions
Audio-Video and IT Test Solutions
Cable and Wire Test Solutions
Plugs and Sockets Test Solutions
Power Switch Test Solutions
Transformer Test Solutions
Electric Toys Test Solutions
Energy Meter Test Solutions
Motor-Operated Tool Test Solutions
Select an organization
to browse standards
Unlike electric luminaires, which require only one photometric test, skylights require a separate test to characterize their performance at different sun angles as well as a separate measurement to determine the sky conditions. This document provides the IES recommended uniform method for determining and reporting the photometric characteristics of skylights and tubular daylighting devices that incorporate a means to diffuse the natural hemispherical daylight as the daylight passes through the daylighting system. It describes the procedures followed and the precautions observed in obtaining uniform and reproducible measurements of tubular daylighting devices and skylights with glass or plastic glazing. This document identifies the components and the structure type needed to adequately measure daylighting devices. The procedures, calibration of the equipment, and determination of sun angles and sky conditions are also discussed.
ANSI/IES LM-81 Photometric Testing of Skylights and Tubular Daylighting Devices under Hemispherical Sky Conditions
LISUN following instruments fully meet ANSI/IES LM-81 Photometric Testing of Skylights and Tubular Daylighting Devices under Hemispherical Sky Conditions
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.
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...
Any laboratory, which provides credible characterization of LED products, is dependent on lighting test equipment. The first question when you are designing a LED testing program...
Proper light output is needed to measure and validate the output of the LED and to guarantee that the performance of the LEDs in the field...
The correct light output measurement is essential to determine the actual output of the current lighting products. An Integrating sphere is a dedicated device specialized to...
Since the development of LED technology, recent lighting fixtures are generating a high level of luminous intensity, which in most cases are tens or even hundreds...
Industrial luminaires with high power output would provide high quality and reliable luminance in harsh conditions like factories, warehouses, airports, tunnels and outdoor infrastructure. To determine...
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 Lighting technology has undergone a dramatic transformation in recent years, driven by advancements in LED systems and an increasing focus on energy efficiency. As lighting...
Introduction When testing the luminous flux and other photometric properties of LED lighting, integrating spheres are essential tools for accurate measurements. These measurements, often referred to...
Introduction: An integrating sphere, also known as a photometric sphere or luminous sphere, is a hollow spherical device used for optical measurements. Its design incorporates one...
Introduction: Lighting systems, material analysis, and optical testing are just a few examples of the aerospace industry’s stringent requirements for accuracy and consistency. In order to...
Introduction: High Precision Spectroradiometer Integrating Sphere Systems, also known as HPSISS, are helpful instruments that may be used for a variety of purposes, including determining the...
The research and development of LED light source has become the focus of the world. Governments in various countries are constantly improving the standards of LED...
Integrating sphere is an optical measuring instrument, which can quantify the parameters of light source such as luminous flux, color temperature, light efficiency, etc. The integrating...
Introduction Colorimetry and CRI measurements are very important in a wide variety of industries, including lighting, display technology, and the material sciences, amongst others. Integrating spheres...
Introduction Integrating spheres have shown their worth in several sectors by allowing for precise and trustworthy data collection during optical measurement and light characterisation. Significant advances...
Introduction In optical measurements, having results that are accurate and trustworthy is very necessary. Integrating spheres have been found to be helpful instruments because of their...
Introduction Integrating spheres have played an important role in optical measurements because of the uniform illumination they provide and their ability to precisely characterize light sources,...
Introduction Numerous scientific fields make use of the technique of spectrophotometry, which is the measurement of the absorption, transmission, and reflection of light. With its assistance,...
Introduction The integrating sphere has lately become more popular for application in the area of optical and photometric measurements. The versatility and efficiency of these instruments...
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...
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...
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....
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...
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...
Integrating sphere measurement system is the most common light color measurement equipment in the lamp industry. Its measurement results can meet the R & D and...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
Spectroradiometer & Integrating Sphere System as main test device to measuring LED lamps, it’s as a most important device to judge the quality of lighting products....
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;...
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...
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...
English
中文简体
English
Русский
Español
Português
Türkçe
العربية
Deutsch
Polski
Italiano
Français
한국어
ไทย
Tiếng Việt
日本語
