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led bulbs - China Manufacturer

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1) allows the power Pm: allows you to add LED at both ends of a positive DC voltage and the flow through the maximum of its current product. Exceeds this value, the LED heat, damage.

(2) Maximum forward DC current IFm: allows you to add the forward DC current. Exceeds this valu e can damage the diodes.

(3) The maximum reverse voltage VRm: allows you to add the maximum reverse voltage. Exceeds this value, the light-emitting diodes may be breakdown.

(4) working environment topm: light-emitting diodes environment of a working temperature range. Below or above this temperature range, the light-emitting diodes will not work properly, the efficiency is greatly reduced.

B.

Context of current global energy shortage concerns rise again, energy conservation is an important issue facing our future, the application of LED light emitting products are attracting the world s attention in the lighting field, LED as a new kind of green light must be the future development trend of the 21st century will enter the LED as the representative of a new era of lighting.

Chinese LED industry started in the 1970s. After 30 years of development, the LED industry in China has initially formed a relatively complete industr ial chain including the Preparation of the production of LED epitaxial wafers, LED chips, LED chip package and the application of led underground light products. National Semiconductor Lighting Project "to promote the formation of Shanghai, Dalian, Nanchang, Xiamen, Shenzhen, Yangzhou and Shijiazhuang seven National Semiconductor Lighting Project Industrialization Base. Yangtze River Delta, Pearl River Delta, Min Delta and the northern region has become a gathering place for the development of China s LED industry.

At present, China s semiconductor lighting industrial development is good, in particular the rapid development of enterprises of epitaxial silicon, the size of the packaging companies continue to maintain a rapid growth in lighting applications made great progress. Output value of China s LED application products has more than 30 billion yuan in 2007, has become a full-color LED display , solar LED landscape lighting application products the world s largest producer and exporter of emerging semiconductor lighting industry is taking shape. Domestic lighting in the area has been the formation of certain characteristics, including outdoor lighting of the fastest growing, with more than one hundred LED lights and the construction of dozens of demonstration roads, but the country remained backward in terms of large-size LCD backlighting and automotive headlamps.

2008 Beijing Olympics the focus on the LED lighting display to allow people to have a new understanding of the LED, a strong impetus to the development of China s semiconductor lighting industry. China s semiconductor industry industry big but not strong, the core competitiveness still need to be further enhanced. Domestic enterprises to grow bigger, improve product quality and technical level is a priority, to improve the future ability of the asking price when made manufacturers patents, or gradually through R & D breakthroughs in core patent.

C. trends:

LED is called the fourth generation of lighting source of light or green light, with energy saving, environmental protection, long life, small size, can be widely applied in various directions, display, decorative, and backlighting, general lighting and urban night scene of the field. In recent years, some of the world s economically developed countries around the development of LED launched a fierce technology race. Since 2000, the United States to invest $ five hundred million to implement the national semiconductor lighting plan ", the EU also announced the launch of similar to the" Rainbow Plan "in July 2000. China s Ministry of Science and Technology in support of the "863" Project, June 2003 first proposed the development of semiconductor led lights for homes plan.