LED lighting replacing the traditional street lights need to improve reliability

　　Usually LED Street lighting or tunnel lighting applications, LED street light effect will be defined in each of the lamps 85 lumens per watt or higher terms of the functional construction of the prior art , the LED light source can be found made by the technique street lighting, public lighting, its energy consumption will be much lower than incandescent lamps , xenon lamps, halogen lamps high brightness energy used by traditional light sources , although a significant win energy consumption, but in fact as street lights use LED light source , still encounter reliability optical decay rate ( lifetime ) affected.

　　How to understand the reliability of the LED first defined , in general, refers to the reliability of the unit time , the ability of the product to perform its objective function under conditions of observed failure reason main LED light fixture of several states , a serious the breakdowns , which represents the entire system was seriously damaged the LED light source can not be used , another is the emergence of LED light source parameter condition , affecting its operation performance , that is the normal state of flux LED performance , and if there is less than the initial system 70% of the value of the following , you are parametric fault , either parametric or severe symptoms, represents streetlights have not qualified for the LED light source lighting tasks, must be repaired or replaced.

　　LED lighting for outdoor life requirement is defined as 35,000 hours , even LED light emitting element L70/B50 can reach 50,000 hours of life , but because of bad light affected the performance of the component itself quite a lot of factors , like closed or heat lamp housing poor operating environment , or even drive a short circuit leakage , etc. , are likely to make early entry into the light -emitting element LED -lives , affecting its durability.

　　LED lamps with existing manufacturing processes , in fact, have quite a lot to improve the overall life of the lamp practice , for example in terms of the LED package , LED package can be said about the key to reliability , high power chip package with high heat and ceramic substrates with low surface change package, excellent performance can be obtained not only in the heat resistance, thermal conductivity, and also in the relatively stable performance parameters packaging technology .