Production of led street lamp manufacturers in the market now is very much, the same power of lamps and lanterns price several times, from the led street lamp shell to the inside of the accessories price is very transparent, this paper introduces the degradation of several characteristics of lamps and lanterns of led street light, the lamps and lanterns of degradation, the low efficiency of the light emitting chip, now a lot of brand of the light-emitting chip light-emitting efficiency is more than 140 lm/W, The luminescence efficiency of some low-end chips is 90LM/W, but the overall efficiency of the lamp is low. The result of low luminescence efficiency is a large amount of heat generation. Will the life of the chip be prolonged when it is used at high temperature?

The heat dissipation effect of radiators is poor. In order to reduce the cost, some street lamp manufacturers make radiators made of inferior materials with slow heat conduction and poor ventilation performance. Once lit, it will be hot, which will seriously affect the electric power of lamps and lanterns to accelerate the light attenuation of lamps and lanterns. Good lamp box design is reasonable, heat conduction is good and heat dissipation is fast, long time lighting temperature rise changes less, not hot to touch.

The selection criteria of the drive power is very low, the same specification of power supply depending on the choice of accessories vary in price, life is also very different. The high quality power supply is usually guaranteed for more than 5 years, and the life is more than 7 or 8 years, but the low price power supply usually starts to be damaged in a large area after 2 years, and the maintenance cost increases significantly when the price is low. In order to ensure the quality of street lamp products, you need to keep your eyes peeled when choosing a street lamp manufacturer. There are a lot of strength to prove the basis, Lang Xu LED street lamp has passed the test of many lighting projects, customers can investigate in the local, choose their own LED street lamp manufacturers.