From last century to now, led high bay has developed for over 50 years. The price for led high bay falls from the sky-high price to the price that the enterprise could accept. At the beginning of this century, the surge of led high bay hit the industrial and commercial lighting. More and more companies replace their high pressure sodium lamp s with led high bay. Nowadays, the technology of led high bay is mature enough to apply to home use even if the price for home use is a little high. The led high bay has already occupied a certain market in home use. There must have a surge in led high bay on home use in a not long future.