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How to effectively avoid light decay and prolong the service life of solar LED street lights

by:CHZ Lighting     2021-07-31
The so-called luminous decay means that the luminous efficiency of the luminous body decreases after a period of use, and the brightness is not as high as the initial time. The standard of the lamp is to calculate the luminous decay according to 1000 hours, which means that the luminous efficiency decreases after 1000 hours of cumulative or continuous operation. Percentage. There are many reasons for the light decay of the LED light source of solar LED street lights. The main factor is the aging of the chip. To solve the light decay, the most important thing is to control the aging speed of the LED chip. First of all, the quality of the LED chip is very important. Solving the problem of chip heat dissipation, in short, solving the problem of LED light decay is multifaceted. The quality of the chip, the packaging technology, and the choice of packaging materials are all critical. Solar LED street light source is characterized by long life, theoretical life can reach 80 to 100,000 hours. Of course, some people doubt this. Can LED really have such a long life? According to such a life expectancy, LED lamps can really be used for dozens Isn't the year bad? According to experiments, the so-called life span of 80,000 to 100,000 hours is a prerequisite. The LED chip, the environment of use, and the current used are directly related. This life refers to the complete electrical performance of the LED from the beginning of use. The time required for the loss of course did not take into account the factor of light attenuation. In lighting applications, what we need is the light-emitting life, that is to say the effective light source life. The effective light source life refers to the cumulative working time of solar LED street lights that can emit effective and useful light when working. The effective light source life of the LED light source can usually reach 60,000 to 70,000 hours is already pretty good. Therefore, the speed of LED light decay is not proportional to the life of LED. Only by controlling the light decay can the service life of solar LED street lights be extended.


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