Energy-saving switch with high-sensitivity detector that uses microwave radar as the control signal source to detect human movement. When someone enters the detection area, the light will turn on immediately. The radar signal can penetrate plastic, glass, ceiling, wooden door and thin walls. It supports sensor distance and time delay adjustment, convenient to use. Easy to install, suitable for LED lamps, incandescent bulbs, energy-saving lamps. Ideal for closet, basement, laundry room, garage, bathroom, aisle and stairs. Recommended wall installation height: 1.5-1.8m, recommended ceiling installation height: 3-6m. Specifications: Color: White. Type: 12-24V SK-807K-DC, 220V-240V SK-600, 220V-240V SK-700 (optional). Type 1: SK-807K-DC Input voltage: 12-24V DC. Frequency: 5.8GHz. Transmitting power: &lt; 0.2mW Low power consumption: &lt; 0.5W Maximum current: 7A (max). Detection angle: 360. Delay: 10 seconds to 30 seconds. Detection distance: 1 to 10m. Photosensitive setting: 5-2000lux. Operating temperature: -35C to 80C. Dimensions: Approx. 90 x 41 x 39mm. Package weight: Approx. 82g. Type 2: SK-600 Power supply: 220-240V AC. Power frequency: 50/60Hz. Low power consumption: &lt; 0.5W Transmitting power: &lt; 0.2 mW Maximum intensity: 1200 W. Detection angle: 360 . Delay: 10 seconds to 30 seconds. Detection distance: 2 - 10 m. Photosensitive setting: 10 - 2000 lux. Operating temperature: -35 C to 80 C. Dimensions: approximately 89 x 41 x 42 mm. Package weight: approximately 84 g. Type 3: SK-700 Power supply: 220 - 240 V AC. Power frequency: 50/60 Hz. Low power consumption: < 0.5 W Transmission power: < 0.2 mW Maximum intensity: 1200 W. Detection angle: 360 . Delay: 8 seconds to 12 minutes. Detection distance: 1 to 8 m. Photosensitive setting: 5-2000 lux. Operating Temperature: -15C to 70C. Dimensions: Approx. 95 x 42mm. Package Weight: Approx. 133g. Package Contents: 1 x Light Switch.