Sensors have become an essential part of modern industrial lighting. The quick start function of led high bay enables applying of sensor. Infrared sensor can detect human in the illumination zone. When human is detected, light’s on; when human leave the detecting zone, light’s off. This function fundamentally improves the energy-saving function, and makes the energy consumption of LED Lights much lower than traditional lights with the same wattage. Many other types of sensor LED lights are also coming into the market with the development of technology.