Want to add automatic lighting to your home? These AITIAO motion sensor switches make it easy! You get 4 black sensors that work with 12V/24V DC systems - perfect for LED strip lights in cupboards, kitchens, stairs, and bedrooms. The PIR (passive infrared) technology detects human movement by sensing body heat within an 8-meter (26-foot) range with a 60-degree detection angle. The delay time is adjustable from 1 to 10 minutes, so lights stay on as long as you need after you leave the area. They can handle loaded power from 10W to 99W with 6A output current, working in temperatures from -20 to +60 Celsius. Installation is straightforward - just connect your load wire first, then the power wire (making sure no short circuits occur before turning on). When someone enters the detection area, the lights automatically turn on, then shut off after your set delay time once they leave. Perfect for companies, hotels, shopping malls, warehouses, and home areas like corridors and aisles. They're also great for security zone automatic lighting systems. These sensors bring that smart home convenience without the complicated setup or high cost of full smart systems.