3 Wires Electric Relay Body Motion Sensor Automatic Light Lamp Control Switch provides automatic lighting control with flexible day and night settings for a wide range of lighting applications. Its compact, lightweight design and threewire relay format make it easy to integrate into standard AC lighting circuits. Key benefits Automatic convenience: turns lights on when motion is detected and off after inactivity, eliminating the need for manual switching. Day and night options: selectable operation for both day and night or nightonly, so lights operate only when you want them to. Wide and adjustable coverage: 360 degree detection angle and adjustable sensitivity up to 8 meters to match the detection range you need. capacity and compatibility: rated load 1200W and power supply AC 220240V, compatible with most household and commercial lighting fixtures. Spacesaving installation: small, lightweight plastic housing blends into existing setups without taking up much space. Features and specifications Design: threewire electric relay for straightforward wiring into standard lighting circuits Detection: Mini IR motion detector with full 360 degree coverage Detection distance: adjustable up to 8 meters Modes: selectable day and night or nightonly operation Load capacity: rated load 1200W Power: AC 220240V Material: durable plastic construction Size: compact and lightweight for easy integration Typical applications Corridor and stairwell lighting where automatic activation improves safety and convenience during night hours Storage rooms, basements, or utility areas where hands lighting is useful during short visits Office or commercial passageways to ensure lights operate only when space is occupied, while allowing daytime bypass when needed Practical notes The threewire relay design allows connection to most standard AC 220240V lighting circuits; follow local wiring codes and consult a qualified electrician for installation. Adjust detection sensitivity and mode to match installation height, traffic patterns, and ambient lighting conditions for reliable operation. This motion sensor switch offers reliable automatic control, flexible operation modes, and broad compatibility with lighting loads up to 1200W, making it a practical choice for residential and commercial lighting control needs.