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 standard and method, which clarify the test parameters, testing equipments, measurement rules and etc. The key point for this standard is to provide guidance for testing the luminous flux, color tem...
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 in 1906, it is a technical Institute. Institute standardization work is responsible by more than 80 technical committees and subcommittees. Every technical committee is engaged in the research and standard formulation work o...
LED automotive light adopts LED (light emitting diode) as a light source. Since the LED possesses advantages of high brightness, variety of colors, low power consumption and long life, and it has enhanced that daytime running lights must be applied for motor vehicle in European before 2011, LED is more widely used in automotive interior and exterior, especially the application of interior automoti...
It is quite important for factories and users to prevent equipment from electrostatic discharge. With the wide application of microelectronic components, to improve the reliability of products and systems, we urgently need to identify various factors of problems to find a solution. The accumulation of static electricity and discharge problems become a greater concern because of uncontrollable envi...
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 be around 50K hours. Differ from the traditional lightsource, LED light will decay gradually rather than extinguish instantly. According to the standard IES-LM-80, IES-LM-82 and TM-21, the requirements of the test cycle is generally 6000hr, and it i...
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 lighting applications are more and more. How is the development trend in future? For lamps, it mainly has intelligent lighting, agricultural and horticultural lighting, wireless control device and people-oriented lamps. Lamps combine w...
Combination wave generator is a high reliability analog lightning surge wave generator designed for lightning production enterprises. It is suitable for Electromagnetic compatibility (EMC) – Surge immunity test. It can test impact current absorption capacity and impact current anti-jamming capability for related electronic components, overvoltage protector, electrical circuit etc. To assess ea...
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 multiple chips, the other one is SMD made by a single LED light source pasted on the PCB. Characteristics of light source: There are both advantages and disadvantages between the two kinds of light sources. For COB integrated light sourc...
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 spectral light source and also can measure CFL, HID narrow spectral light source. It can be calibrated automatically by itself. Do not worry that the dark background changed affects the measurement resu...
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