The motion sensor is sensitive, with a sensing distance of 2-4 meters, suitable for LED strips or anywhere that requires a sensor switch. Features: When you press the button, the red light will light up, which means the switch will keep working. When you press the button again, the red light will turn off and the switch will enter motion sensor mode. Sun/Moon is optional. When you put the button in "sun" mode, it will work 24 hours a day, if you adjust it to "moon" mode, it will only work at night. The size is 147*27*14mm, lightweight and durable. Combined with LED strips, it works really well. The sensing distance is 2-4 meters, and the installation is simple, which can bring a lot of convenience to your life. The induction switch is very conducive to energy saving and environmental protection. Specifications: Item: PIR Motion Sensor Input Voltage: 5V Switch Type: Sensing Delay Time: 15s-5mins Sensing Distance: 2-4m Applicable Interface: DC 5V Switching Batteries: AAA * 4 (Not Included) Support USB Power Dimensions: 147*27*14mm Note: Due to shooting conditions, there may be some deviation due to manual measurement or slight color difference. Thank you for your understanding.