led high bay is a type of lighting product better in energy-saving and environmental performance than incandescent light and should be popularized in general families. However, due to reasons of high prices, it’s not popular in common families. LED high bay is currently the only high-tech lighting product that can replace incandescent light with energy –saving and environment performance and long product life. In Chinese lighting market, LED lights are widely applied in outdoor areas such as landscape, transportation and advertisement display. But why does it can’t be seen in home appliances? Many people don’t buy LED Lights because they are several times more expensive than normal incandescent light.