The LEDs (LightEmittingDiode) light-emitting diode, is a solid state semiconductor devices, which can be converted directly into electricity for light. The heart of the ip65 led downlight is a semiconductor chip, the chip attached to one end on a bracket, one end is negative, the other end to connect the positive power supply so that the whole chip to be epoxy encapsulated. The semiconductor chip consists of two parts, the part of the P-type semiconductor, the dominant hole in it, the other end of the N-type semiconductor, here is mainly electronic. But the two semiconductor connected when they form a PN junction. “When the current through the wire to the chip, the electrons would be pushed to the P region in the P region electron-hole recombination the form of photons, then it will emit energy, which is the principle of LED light. The wavelength of light determines the color of the light is determined by the formation of the PN junction materials. The technology has matured, one of the signs is ip65 led downlight lighting standards and norms have been put forward. Stringent efficiency requirements already exist for quite some time, and will continue to improve.
LED brightness is necessarily related to the led high bay light-emitting angle, the smaller the point of view of the LED the higher the brightness, no super-bright ultra-bright, that is to lie to children, if it is good quality LED regardless of which the brightness of the LED manufacturers are similar, just not the same production process, service life is slightly different, because we are using it a few LED chip abroad.