[Pu Wan heat Technology - industry, academia, research, sales for the body, is committed to building China green carbon environmentally friendly high-tech entrepreneurs, high heat dissipation, high insulation, low-density, high-performance | is the benchmark for similar products in the enterprise business ! Cooling Kit truly first brand! ! ! ] The first application of the principle of semiconductor PN junction light-emitting LED light source made came in the early 1960s. The material is then used GaAsP, fat red (λp = 650nm), LED bulb lamp holder manufacturers in drive current of 20 mA, the luminous flux is only a few lumens per thousand, the corresponding luminous efficiency of about 0.1 lumens / watts. The mid-70s, the introduction of elements of In and N, the LED produces green (λp = 555nm), LED heat radiation shade, yellow (λp = 590nm) and orange (λp = 610nm), luminous efficacy also increased to 1 lumen / watt. [Pu Wan heat Technology - industry, academia, research, sales for the body, LED high heat lamp cup, to build China's high-tech entrepreneurs, green carbon environmental protection, high-heat, high insulation, low-density, high-performance | is similar product enterprise benchmarking enterprise! Cooling Kit truly first brand! ! ! ] And in the light of the new design, Lumileds company used 18 red LED light source, including circuit losses, including a total power of 14 watts, Huang Jiang LED lights, can produce the same light effect. LED lights are also important areas of automotive light applications. For general lighting purposes, people need a white light. 1998 hair white LED developed. This is the GaN LED chip and yttrium aluminum garnet (YAG) packaged together to make. GaN chip emits blue light (λp = 465nm, Wd = 30nm), issued a yellow YAG phosphor containing Ce3 + after high-temperature sintering of blue excitation light emitted by this peak 550nLED lights m. LED lamp market _ Cape square cooling Technology (certification) _ Huang Jiang LED lights provided by the Dongguan City & Poor's square Optoelectronics Technology Co., Ltd. heat. Dongguan City, Pu Yi million Optical Cooling Technology Co., Ltd. (www.ledpowide.com) is Dongguan, other leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In general Wan cooling technology leaders with the staff warmly welcome all inquiries negotiations to create a general cooling of Science and Technology Wan better future.