Lightkiwi B3367 Heron Warm White Wireless Rechargeable Stick-On LED Light Battery Operated Rechargeable DC5V Lithium Battery (600mAh). Motion Activated - Light turns on automatically when motion is detected. Light Sensor - Light won't turns on during day time when it is bright enough. Auto Shut-off - Light shuts off automatically if no motion detected for 15 seconds. Magnetic Mount - Use magnetic tape (included) to mount your Light onto any surface. It magnetic surface makes it easy to detach and attach in order to replace the batteries.