However, LED lamp shell heat and the use of premises in accordance with the power level, there will be different options. Cooling methods are mainly the following: Al fin: This is the most common way of cooling, aluminum fins as part of the housing to increase the cooling area. Thermal plastic case: a thermally conductive material at the time of filling plastic injection molding, plastic housing increases thermal conductivity, heat capacity. Air hydrodynamics use light shell shape Dangyang led electronic display, creating a convection air yuan'an led electronic display, which is the lowest-cost way to enhance heat dissipation. Fan lights shell reinforced with long life and efficient internal cooling fan, low cost led electronic display, good effect. But the trouble is that some fans want to change, does not apply to outdoor, this design is more rare. The use of heat pipe heat pipe technology, the heat conduction from the LED chip to the housing fins. In large lamps, such as street lights, etc. are common design. Surface radiation heat lamp shell surface treatment do radiation heat treatment, the simplest is to apply heat radiation Wei Sheng Zhi Hua paint, radiant heat mode can be taken away from the surface of the lamp housing. Specifically, LED junction temperature is due to two factors caused by: 1. Internal quantum efficiency is not high, that is, when the electrons and holes recombine and generate photons are not 100%, often referred to as the "leakage current" PN area leaving the carrier recombination rate decreases. Leakage current is multiplied by voltage power this part of Zigui led electronic display, which is converted into heat, but this part does not account for the main component, because the internal photon efficiency is close to 90%. Jianli led electronic display _led electronic display _ 金锐光 electricity provided by the Science and Technology Co., Ltd. Yichang 金锐光. Yichang 金锐光 Technology Co., Ltd. (www.ycjrgd.com/) strong, credible, in Yichang, Hubei electronic, electrical and other industries cooperation projects accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Jinrui Guang electricity and you hand into the brilliant, for a better future!