Infrared sensor switch Working voltage: 100-240V Best detection distance: 3-5M Hole diameter: 25mm/0.98inch Features 4 wires: red is phase (L), outermost blue is neutral (N), yellow and inner blue connect to the lamp or energy-saving lamp. This PIR motion detector switch is compact and lightweight, making it easy to install and use in rooms or cabinets, offering plug-and-play functionality. Function: Automatically turns on/off in the dark when you enter the induction area, with adjustable delay settings of 15 seconds, 45 seconds, and 5 minutes. Besides controlling LED lights, it can also manage exhaust fans, doorbells, or other devices. Widely suitable for automatic lighting in corridors, stairs, rooms, basements, warehouses, garages, closets, advertising boards, and more. Induction angle: 110 degrees Waterproof rating: IP22 Working temperature: -20 Celsius - +40 Celsius Applicable lights: LED lighting, ceiling lights, panels, spotlights, etc. Color: As shown Material: Plastic Package Contents: 4 x Mini Motion Detector Switches Only the above package content is included; other products are not. Note: Light reflections and different displays may cause the color of the item in the picture to differ slightly from the real thing. The allowed measurement error is +/- 1-3 cm.