In the past, we wanted to put a sensor on the high pressure sodium fixtures to save energy. But it didn’t work until the led high bay . The conventional lamp s take a long time to warm up. The time between two times startover is too long to accept. We need to figure it out in another way. This problem is solved until the emergence of the led high bay . This new generation lamps could turn on immediately. And the installation of the led high bay is convenient, we provide many kinds of installation to meet your requests.