[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! ! ! ] LED is the English light emitting diode (light emitting diode) acronym, and its basic structure is an electroluminescent semiconductor material chip, with silver paste or white glue to solidify the bracket, East LED lights, then with silver or gold thread connecting the chip and the circuit board, and then sealed with epoxy resin around, play a role in protecting the inner core wire, LED lamp market, the final installation of the housing, so the seismic performance LED lamps. [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. Then the materials used are GaAsP, LED lampshade manufacturers, hair red (λp = 650nm), when the drive current of 20 mA, LED lamp housing, luminous flux is only a few lumens per thousand, the corresponding luminous efficiency of about 0.1 lumens / watt. The mid-70s, the introduction of elements of In and N, the LED produces green (λp = 555nm), yellow (λp = 590nm) and orange (λp = 610nm), luminous efficacy also increased to 1 lumen / watt. East LED lights, Pu Yi million heat Technology, LED bulb lamp holders provided by the Dongguan City, Pu Yi million Optoelectronics Technology Co., Ltd. heat. East LED lights, Pu Yi million heat Technology, LED bulb lamp base is in Dongguan City Pu Yi million Optoelectronics Technology Co., Ltd. heat (www.ledpowide.com) this year introduced a new upgrade, the above picture is for reference only, please call this page or image on the telephone, to obtain the latest information, contact: Miss Jane.