LED can directly convert electrical energy into light energy

LED can directly convert electrical energy into light energy. LED's heart is a semiconductor wafer, the wafer is attached at one end led barricade lights strain on a stand, is negative, and the other end connected to the positive power supply, the entire chip is epoxy encapsulated. Semiconductor chip consists of two parts, part of the P-type semiconductor, the hole in it dominates, the other side is N-type semiconductor, here is mainly electronic.