Now the biggest issue constraining LED lights promotion is the led high bay price. Since LED Lights are several times more expensive than compact fluorescent lamps, customers often choose the latter. Although the price of LED lights is lowering, it is still far from what customers can accept. The main reasons restricting LED lights prices are: 1. High cost of LED High Bay heat dissipationThe structure design of LED lights take up about 20% of total cost, this is reasonable by far. The biggest problem is how to innovate and make more reasonable designs. The heat dissipation cost shall be maintained at 5%. Two main aspects shall be controlled in actual heat dissipation design: firstly the path between chips and outer dissipater shall be as short as possible; the second is radiator restriction.