This product is an intelligent product based on infrared motion sensing (PIR) technology. Our motion sensor cabinet light has a charging voltage DC5V, charging time 2-4 hours. These under cabinet led lights can be used anywhere. You can use these LED lights for under cabinet kitchen lights, bedroom, baby room, closet, closets, cabinet, corridor, workshop, basement, garage, stairwell,garage entrances, pantry and other dark places. These under cabinet lights will automatically senses human motion within 10ft/120°range and shuts off automatically after 20 seconds of no movement. Button A: 1- Long Press to turn ON/OFF 2 - Short Press to switch the Light Sense State Button B: 1 - Long Press to Stepless Dimming 2 - Short Press to Switch Light Color Touch switch: Touch this position to realize the switch light function (only switch function). Turn ON & OFF the light