What is the cause of the cause LED street lamp light failure?

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LED street lamp since listing, because its energy conservation and environmental protection, light effect is good, have been sought after by the people. But when careful people find LED lights began to use high brightness, after two or three years later found its brightness seemed dimmed. Why will appear this kind of phenomenon? Actually don't have to worry about this phenomenon, this is just a normal droop like now. So there is a problem again, why can appear LED street lamp light failure, summarizes several reasons LED lights manufacturer for your reference:

a, LED street light emitting heat belongs to the small scale of concentrated heat, street lamp under the condition of high power continuous work for a long time, the temperature of the LED chip will be very high, the heat dissipation module can't effective heat dissipation, leading to the LED street lamp light failure and affect its service life, this is also the key reason.

2, LED to constant current drive, driven by voltage makes some LED LED attenuation. Drive current is greater than the rated driving conditions, which leads to the LED road light failure.

3, LED street lamp is used in outdoor, influenced by environmental factors. If the factory not to do a good job of seal waterproof lamp head, can cause light internal erosion by rain and acid and alkali substances. Affect the service life, light failure occurred.

in fact, no matter how we do occur in the LED street lamp light failure phenomenon, just droop severe not serious problem. If we choose the IP extremely waterproof level and above the heat dissipation module of good LED street light head, so will greatly reduce the light failure degree, prolong service life.