Description: When people come to sensing range, the switch automatically open and shut down after motion leaves. Energy saving, convenient as well as environmentally friendly. 20-40s intelligent time delay (When people leave, it will auto delay power off); 5-8m detection range. Body motion sensing + light control, it can automatically detect the existence of people and activate the lamp switch when there is dark, and the lamp will not light up if there is bright enough, more practical and energy saving. Compatible with incandescent lamps, energy saving lamps, LED lights, fluorescent lamps and other lamps. Great for hotels, offices, factory warehouses, residential quarters, garage, corridor, walkway, entrances, bathrooms, elevators and other public places. The black wire is common wire. Black and red wires connect to 220V power, black and yellow wires connect to lamps. Specification: Sensor Head Size: Approx. 50x40 mm/1.97x1.57 inch (LxDia.) Cable Length: Approx. 170 mm/6.70 inch Material: PC Working Voltage: AC220V; 50/60Hz Detection Angle: 120 ° Detection Range: 5-8m/16.4-26.2ft Delay time: 20-40s Load: 100W Activated Brightness: L