Wifi Version don't need wifi router to work. All version can wire with light,Lamb ,Output:AC 95-250V. User can create scenes,such as presence detected.light switch turn on. .turn off light automatically. Specifications Power Supply: AC 95~250V 50/60Hz<br><br>Max Output Current: 2A Detect Angle: 120° Radar Frequency: 24GHz Working Temperature: -10℃ ~ 60℃ (14°F~140°F) Working Humidity: 1% ~ 85%RH(Non-condensing) Max Detection Distance: 6M Status Indicator: One LED light Bluetooth Version: Bluetooth 5.0 Wireless Distance: 45M Wireless Type: 2.4GHz Wireless Standard: IEEE 802.11b/g wall-hanging mounting86mm x 86mm x 28.5mm mounting with clipØ 60mm x 28.5mm ceiling mountinØ 90mm x 28.5mm 24G radar is more accurate than 5.8G and has a faster response. For example, distance detection is more accurate, such as time accuracy. The human presence radar sensor can not only detect movement, but also detect stillness. For example, when you are not moving in a space, it can detect you, thus avoiding the embarrassment of people being present but the lights are off. Color: White Material: ABS Specifications: Ceiling Style<br><br>Package Contents: 1 x Human presence sensor<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.