The applied problems of LED light sources were proposed from Chinese energy situation and national policy,the traditional streetlight and LED streetlight source were compared.

More attention from the experts was paid to the ap-plication of LED street lamps.

In recent years, it has became an important step to use LED street lamps in city roadway lighting system which have the advantages of green, energy saving, safe and reliability.

Taking solid waste disposal center in the eastern of Xiamen city as an example,this paper introduced the basic situation of the project which using solar LED street lamps as road lighting.

of leds and high-pressure sodium lamp comparison;Finally,the article in xiamen LED lamp demonstration project as a case to analysis how the LED street lamp used in road lighting,Conclusion is LED lamp used in urban road lighting is completely feasible.

Research and Development of LED Lighting Model Controller Based on USB;

A light distribution scheme for designing LED dipped headlight is proposed,based on the GB4599-94 regulation.

The characteristics of LED driving circuit were described at first,then the driving circuit with voltage reduced capacitance for LED fluorescent lamp was designed,and the selection principle for key components was analyzed.