[DETECTION RANGE ADJUSTABLE] - 3-12m adjustable, it can be adjusted according to your demand. The ceiling occupancy sensor both fits for small room and large room. [DELAY TIME ADJUSTABLE] - 10sec-7min adjustable, the delay time controls how long the light stays on once the ceiling motion sensor detectes motion. During the delay time if motion detected, the delay time reset and a new delay time. [LIGHT SENSOR ADJUSTABLE] - 3LUX~2000LUX adjustable, the ceiling occupancy sensor can be adjusted to both work in day and night, or only work at night. [SUPER OCCUPANCY SENSOR] - 3 detectors for triple overlapping coverage to catch even small movements. [PIR MOTION SENSOR] - Working by detecting human movement(or heat source), the motion sensor switch is widely used on LED light, compact fluorescent lamp, incandescent lamp, ceiling light, exhaust fan..., Weight: 0.3858089585 Pounds, Manufacturer: Tuidzljd