High power led technology in the oil field, petrochemical, railway, mining, military and other special industry, stage decoration, urban landscape lighting, display and sports stadiums and other special lamps have a wide application prospect.
How it works:
Light-emitting diode (LED) is a solid device for a can convert electrical energy into light energy, its structure is mainly composed of chips of the PN junction electrode and optical systems. The basic working principle of the high power led technology is an electro-optical conversion process, when a forward bias is applied to both ends in the PN junction, PN junction barrier to reduce the spread of P region of positive charge will be N region, the N-zone electronic the proliferation of P region, the formation of non-equilibrium charge accumulation in the two regions. PN junction due to the relative instability of minority carriers generated by current injection, injected into the non-equilibrium holes in the valence band to the conduction band electron recombination in which the excess energy will be in the form of light radiate outward. electrons and holes, the greater the energy difference between the photon energy is higher. Energy steps of different sizes, frequency and wavelength of light is different, the corresponding color of the light will be different.
High power led technology is a phase for low-power LED lamp (compare high power led high bay lights and low power led bulbs), the higher the power of high-power LED lamp, the brightness is brighter, higher prices. Small power LED lamp rated current is 20mA, rated current higher than 20mA of almost all can be regarded as high.