Technology News

Darkroom Design of goniophotometer

Darkroom Design of goniophotometer As the most important part of the lighting test, the main function of the goniophotometer is to measure the absolute luminous intensity. At the same time, it can measure other parameters such as lumen and illuminance. [...]

How to Use TM-21 to Estimate LED Luminaries Life?

How to Use TM-21 to Estimate LED Luminaries Life? 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 pr more. LED will not extinguish [...]

How to effective to measuring LED lamp Start, Run up time and Flicker

How to effective to measuring LED lamp Start, Run up time and Flicker Due to the LED solid-state lighting products have good luminous efficiency, long life and high reliability unique characteristics, so it’s became more popular by markets and customers. [...]

Similarities and Differences between Photometric Measurements of Goniophotometer and Integrating Sphere for Solid State Lighting Products

Similarities and Differences between Photometric Measurements of Goniophotometer and Integrating Sphere for Solid State Lighting Products 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 [...]

Equivalent Test Between Normal & High Frequency Fluorescent Lamp and LED Tube

Equivalent Test Between Normal & High Frequency Fluorescent Lamp and LED Tube Comparing with traditional fluorescent lamp, the LED tube have high light effects, low power consume, long life time and stable luminous efficiency advantages etc. At the same time, [...]

Two Directions on LED Intelligentized: Intelligent Agriculture and Lifi

Two Directions on LED Intelligentized: Intelligent Agriculture and Lifi 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 main theme of the transformation [...]

The difference between main optical names of LED

The difference between main optical names of LED 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 a new generation of lighting market [...]

How to Solve the Stroboscopic Problem of LED Lighting?

How to Solve the Stroboscopic Problem of LED Lighting? “Bright blind” in life is an exaggerated description of some impact incidents, but if it is used for the LED lighting industry, then it is the quality problems of LED lamp [...]

The LED Driver RMS Value Measurement and Analysis

The LED Driver RMS Value Measurement and Analysis As we known the quality of LED lighting products depend on two points: One is LED chip(light source); Second is LED power driver. In the practice, there only have few company can [...]

Color difference SDCM

Color difference SDCM Color difference is an important indicator of CFL color performance. Color difference is the difference between computer calculation forma and the target standard, calculated by single lighting source, the value is smaller, accuracy is higher. (more…)

LMS-6000 Portable CCD Spectroradiometer to Test Lumen?

LMS-6000 Portable CCD Spectroradiometer to Test Lumen? 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 the quality of their products in order [...]

Introduction of Conducted Immunity Testing

Introduction of Conducted Immunity Testing This paper is a brief introduction and description for conducted immunity testing which based on IEC 61000-4-4 fast transient burst test, IEC 61000-4-5 lightning surge test, IEC 61000-4-11 voltage cycle drop test and IEC 61000-4-12 [...]

Reasons of error for LED Lamp Testing

Reasons of error for LED Lamp Testing From the perspective of the LED product structure and technology development, the quality criteria of LED product mainly consider the parameters of the optical properties, electrical properties, thermal properties, radiation safety and life. [...]

IP Level Test Introduction

IP Level Test Introduction   IP is the abbreviation of Ingress Protection. IP grade is the protection level for electrical equipment shell against the foreign body intrusion. It comes from the international electrical commission standard IEC 60529 which was also used [...]

Integrating Sphere Development

Integrating Sphere Development   Integrating Sphere is used for flux measurement, which can make test result more reliable. Integrating Sphere can reduce the measurement error caused by the shape of light, divergence angle and responsiveness difference in different location on detector. [...]

Introduction of EMC Testing

Introduction of EMC Testing EMC (Electro-Magnetic Compatibility) refers to the ability of a device or system to function in its electromagnetic environment and does not constitute an unacceptable electromagnetic disturbance to anything in that environment. EMC is an important indicator of [...]

Advantages and disadvantages for total flux test of Integrating Sphere System and Goniophotometer

Advantages and disadvantages for total flux test of Integrating Sphere System and Goniophotometer According to IESNA-LM-79-80, the total luminous flux (lumen) of SSL products shall be measured with an integrating sphere system or a goniophotometer. The method may be chosen [...]

Goniophotometer System Standard Operating Procedures

Goniophotometer System Standard Operating Procedures 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, beam angle, total flux, luminaries efficiency, zonal luminaries flux, [...]

High and low temperature test

High and low temperature test In natural environment, temperature and humidity are two indivisible natural factors. Due to different geographical locations in different regions, the temperature and humidity effects generated are also different. This test is used to confirm the [...]

Moving Mirror Goniophotometer Introduction

Moving Mirror Goniophotometer Introduction Lisun LSG-2000 Moving Mirror Goniophotometer System adapts the solution of rotating mirror in the center, it is widely applied in road lamp, room lamp, spot lights, stage lights, Mining lamp, Automobile lamp, traffic signal lamp and [...]

IEC 61000-4-2 ESD Discharge Immunity Test

The International Electrotechnical Commission (IEC) has issued IEC 61000-4-2 Ed. 2.0 (2008-12) entitled “Electromagnetic compatibility (EMC) – Part 4-2: Testing and measurement techniques – Electrostatic discharge immunity test.” This standard relates to the immunity requirements and test methods for electrical [...]