intelligent induction: when people come, the lighting device automatically opens; when people leave, the lighting device automatically closes.intelligent delay: switch in the detection of the human body after each activity will automatically add a delay time, and the last activity as the starting point of the delay time.working mode: after the induction switch is connected, in the time delay time, if there is a human activity, the switch will continue to connect, until the people leave after the delay is closed.Material:Plastic,MetalColor:White GreenSupply current: DC12V-24VTTL outputDelay time:9sOperation Temperature:-15 Celsius -70 CelsiusInfrared sensor:dual element, low noise, high sensitivitySize : Approx 90 x 60 x 45mm(3-35/64x2-3/8x1-49/64 inch )Weight : Approx 200gNOTE:Do not in rapid environmental changes.Do not in strong shock or vibration.Do not in a place where there are obstructing material(eg.glass) through which IR can not pass within detection area.Do not exposed to direct sun lightDo not exposed to direct wind from a heater or air conditionDo not live installation, no load short circuit.Package Contents:2 x Automatic Infrared PIR Motion Sensor SwitchOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.