For led high bay with good quality, the price performance ratio is also high. This is due to the low maintenance cost and low energy consumption. In complicated environments like factories, LED Lights perform better than traditional high pressure sodium lamp. The high quality and high reliability of LED lights have been recognized by the international market. More importantly, LED lights are taking up a relatively high market share. In America and Europe, we are gradually dominating a certain amount of market. We believe that in the near future, LED lights will be main stream lighting method.