S. H Widen Photodiode Tech Co., Ltdz(100277) is located in the High and New Technology Industrial Development Zone of Minhang, Shanghai. We are the high-tech enterprise who is professional in researching, manufacturing and selling LED lamps.

We have advanced technology of research and development. There are Experts, Doctors, Masters and Senior Engineers for the research. We keep in step with the international advanced technology. And there is a excellent team who engaged in production, installation and service of the LED lamp and related items all the time. Our expert-project team with abundant experience of both large projects and key projects. We are the first group get through the certifications of CCC, ISO9001: 2000, CE, RoHS. All aspects operate strictly according to the company quality manual and quality system. So the management process become more scientific and specialize the execution system, clear the authority and responsibility, complete the correction and the prevention of the measures. Then we can offer you the best products.

LED lighting aspects: As the first production release and more than 100W high power LED street lights and LED mining company. In more than ten years Widen Continuously developed outdoor illumination such as LED street Lamp(solar, wind energy complementary), LED Tunnel Lamp, LED high bar light and so on. We also research a series of indoor lamps, including LED mining lamp, LED bulb, LED tube, LED pane and so on. We have attained more than 30 patent certificates. We are the leader of the high power fluorescent lamp and mining lamp(30W-300W)at domestic and abroad. Our products are widely used in streets, factories, tunnels, indoor-outdoor lighting, decoration, match with the solar energy and the wind energy facilities, which is the leader of illuminating products over the world. In March 2003, we began to research the white semiconductor illumination. With the efforts of the entire technical staffs we solved the problem of the heat dissipation of High Power LED Diode(which is a industry bottleneck)by trial and error the semiconductor lighting and heat dissipation of the drive circuit. We can make sure that devices work in the temperature rise about 20 degree, in terms of the driver circuit, the efficiency of the LED lamp is more than 95%, the power factor is more than 99%. The street lamp(>100W)and the mining lamp have reached the national requirements by the detection of the National Electric Light Source Quality and Testing Center. The LED street lamp and mining lamp have been used in a number of projects in Shanghai, Beijing, Hebei, Xinjiang, Jilin and other places.

LED illumination has a great and potential market. We not only research the LED illumination but also manufacture different high power lamps for the clients according to their requirement. We created"WIDEN"brand for our excellent production, high quality, competitive price and thoughtful service.

During the past years, our company insists develop steady; Invest more in management and technology. We expand new market actively and make the performance increase steadily year by year, Now our products cover the whole country. We also export to Japan, South Korea, Brazil, some countries in Europe and America.