LED chip early low because of its light-emitting brightness can only do LED are. Today, the lighting of the brightness of the LED chip can meet the technical standards for lighting, enough to replace incandescent and fluorescent lighting.
The LED chip is a semiconductor PN junction, is a light emitting diode. To give an appropriate forward voltage and the forward current, it will be able to emit light. LED light-emitting diode is to convert electrical signals into optical signals junction type electroluminescent light emitting semiconductor device.