[Solar Lamp Factory School] How to detect the life of LED street lamps

The key to the life of LED street lamps depends on the life of LED lamps. At present, the main components of LED lamps are the light source, power supply and structure (module and lamp housing). It is known that LED street lamps are determined by the lamp life, so how do we detect the life of the LED lamp? The light source and power supply are the main factors that determine the life of the LED street lamp. Therefore, to detect the light source, the first step is to see whether the protection level of the cavity protecting the LED lamp bead is high enough; whether the chip junction temperature is within the designed safety range and the LED lamp bead used quality. As for the power supply, it depends on whether the design has enough margin to ensure the life span of more than 50,000 hours. Of course, the authenticity of the LED street lamp can be judged comprehensively through the national test agency or approved test report provided by the company, the certification of the selection of key components, the theoretical basis of the life of the LED street lamp and the relevant data and the credibility of the company. Among them, the LM80 report of the LED lamp beads and the authoritative lamp temperature (including pins) report can be calculated based on the values. At present, high-quality lamps can achieve 2000H without light decay, 4000Hu003c1%, 6000Hu003c3%, 8000Hu003c5%. The life of LED street lamps can also be judged according to the luminous decay curve of LED street lamps. In the actual outdoor lighting situation, the luminous decay of different LED street lamps does not show regularity, and the luminous decay curves of different lamp types are different. Simply using the light attenuation curve to predict the life of the lamp has low reliability and confidence. In addition, the design of the sealing structure of the lamp, the selection of sealing materials, and the selection of optical protection materials will all have a direct impact on the reliability and light attenuation of the lamp. Although the power supply is the most easily damaged part of the lamp, the reliability of the LED street lamp can be greatly improved through the reasonable design of the power cavity temperature and the addition of lightning and surge protectors. This information is exclusively provided by the solar lamp factory lighting, the source of the information: http://./ledld.html