As a new emerging force in current lighting market, led high bay is very outstanding. The whole LED lights industry is also showing a popular trend after the development in the few years.1. Currently, the cost of LED Lights is three times the cost of incandescent light or HID lights. The reason for the higher cost is the unit price of light source and components. The price for white light LED light is even higher than traditional lights. Therefore, in order to cut the price of LED lights, not only the price of light source should be lowered but also the price for other components.