LED is a light-emitting diode, which has the characteristics of a general diode and can convert electrical energy into light energy. Excited by a certain voltage of direct current, it can emit visible light. Compared with traditional lamps such as incandescent lamps and fluorescent lamps, this type of lighting source has lower energy consumption, no harmful radiation, and longer service life. It is an energy-saving, environmentally friendly, and economical lighting energy source. However, due to various factors and constraints, the detection and evaluation of LED lighting fixtures are still relatively lagging behind, which has certain limitations on the large-scale use of LED lighting fixtures. Strengthen in-depth research on the detection standards, evaluation methods, and detection technologies of LED lighting fixtures, with the aim of promoting the wider application of this new type of lighting energy The basic structure of LED lighting fixtures: LED lighting fixtures are mainly composed of 5 materials, including brackets, chips, silver glue, gold wire, and epoxy resin. The core component of LED is a semiconductor chip, with one end fixed to the bracket and the other end fixed to the positive and negative pins respectively. The chip is packaged with epoxy resin. LED is made of I-IV compound semiconductor materials such as gallium phosphide and gallium arsenide. The selection of semiconductor materials has a direct impact on the luminescence color. Different materials have different luminescence colors, and the P-N band width also varies, resulting in different wavelengths of light. Therefore, LED lamps can form various colors of light from ultraviolet to infrared during use. Common semiconductor materials such as high brightness monochrome LED, ordinary monochrome LED, and over brightness monochrome LED are gallium arsenide, gallium phosphide, and gallium indium arsenide

LED Luminaire Luminescence Principle LED has general PN junction electrical characteristics such as reverse cutoff, forward conduction, and breakdown. At the same time, under certain specific conditions, it can emit light, therefore, it also has luminescence characteristics that are not found in general PN junctions. In light-emitting diodes, the most important component is a semiconductor chip. The semiconductor chip mainly consists of n-type semiconductors and p-type semiconductors. The transition layer between the two is the PN structure. Based on the relevant knowledge of semiconductor physics band theory, when LED forward working voltage is applied, most carriers and a few carriers combine with each other. In this case, electrons undergo transitions, allowing energy to be emitted in the form of photons, thereby generating light. On the contrary, when the negative voltage of the LED is applied, a few carriers cannot be injected and cannot bind with the majority carriers, so they cannot emit light The LED lamp inspection standard IEC 6203 1:2008 is currently the first LED safety inspection standard in the industry. This standard was published in IECTC34/SC34A in 2008, and many LED lamp standards have been published since then. LED lamps have semiconductor characteristics, which differ greatly from traditional light sources in terms of color, luminous flux, and other aspects. Therefore, there is currently no unified classification standard for LED lighting fixtures. The lack of corresponding standards to standardize the detection of LED lighting fixtures will lead to confusion in the development of the industry, and the promotion and popularization of products will be seriously affected. At present, the implementation of LED lamp detection is mainly based on the "GB700.12002 General Safety Requirements and Tests for Luminaires", "Housing Protection Level (IP Code) GB4028-93", and "Measurement Methods for Integral LED Street Lamps" as reference; The inspection items mainly include electrical performance parameters, optical parameters, structure and appearance, and reliability tests