As the popularity of the digital product, there are more and more digital fixtures in super markets, airports, gyms. With the time goes by, there are more and more request of led lamp s and digital fixtures. As we all know that the high pressure sodium lamps need take a long time to warm up, that makes the sensors impossible for conventional lamps. This problem solved by the led high bay , this new generation lamps could turn on immediately whenever and wherever you need. That makes that led high bay could not only save energy from its high performance in energy-efficiency, it could also save electric bill when you don’t need.