3.7GHz Microwave Sensor Body Motion Detector Smart Light Switch Compact embedded ceiling mount motion switch for AC110240V lighting circuits, designed for home corridors and general family use. Key benefits Hands lighting: Automatically turns lights on when motion is detected and off after the area is clear, improving convenience and reducing manual switching. Reliable motion detection: Uses a 3.7GHz microwave sensor to detect body movement with responsiveness in low light and through minor obstructions. Spacesaving installation: Embedded ceiling mount design keeps the sensor out of sight and preserves clean ceiling lines. Wide voltage compatibility: Operates across AC110240V, suitable for a broad range of home electrical systems. Consistent performance for everyday use: Designed specifically for residential corridors and similar indoor spaces. What it does and why it matters Motionactivated switching: Converts motion detection into a smart light switch function so lights are only on when needed. This simplifies routine tasks like walking through hallways at night or entering utility areas with hands full. Practical automation: The microwave sensor detects presence reliably in darkness and avoids requiring continuous manual control, reducing the chance of leaving lights on unintentionally. Discreet installation: Embedded ceiling mounting keeps the unit hidden and protected while maintaining effective coverage for the intended area. Important attributes Sensor type: Microwave sensor operating at 3.7GHz for body motion detection. Function: Motiontriggered smart light switch for automatic on/off control. Mounting: Embedded ceiling mount suitable for ceiling installation. Voltage: AC110240V compatibility for standard residential wiring. Intended application: Residential corridors and general family indoor spaces. Use scenarios Corridor lighting: Automatically lights hallways when someone walks through, then switches off after the area is vacant to avoid wasted electricity and improve convenience at night. Stairwell and landing: Provides reliable hands illumination when moving between floors, reducing the need to locate switches in dim conditions. Utility room or closet: Activates lighting on entry and turns it off after exit, keeping small spaces lit only when in use. Installation and suitability Designed for embedded ceiling installation in residential settings. Check existing ceiling cavity and wiring compatibility with AC110240V supply before installation. Suitable for homeowners and installers seeking a compact motionactivated switch solution for indoor corridors, stairwells, and utility spaces. This device delivers straightforward motionactivated lighting with a 3.7GHz microwave sensor and an embedded ceiling design to provide convenient, reliable automation for common residential areas.