Used for one week. It's magnetic, so it won't fall off when attached to iron surfaces, but since I installed it on a wall, there are adhesive marks from the double-sided tape. The battery is 1000mA, the total length is 50cm, and it's made of metal. Also, here's the product description: 【0.9cm Ultra-Thin Design - Versatile Installation】 This motion sensor light achieves an industry-leading thickness of only 0.9cm! It can be quickly attached to metal surfaces and smooth walls such as refrigerators, stairs, and closets. Its compact size doesn't get in the way, and it fits neatly into any scene, making it an interior-friendly design. 【Type-C Fast Charging】 Supports Type-C charging, and a full charge takes only 1 hour! It can be used for 30 days. 【High-Precision Human Body & Brightness Sensor - 3 Mode Switching】 A highly sensitive sensor with a 120° wide angle and a 3m detection range sensitively detects human movement using an infrared thermal radiation sensor. It immediately detects movement in the dark. The automatic shut-off time can be freely set from 10 seconds / 30 seconds / 60 seconds. Furthermore, you can switch between 3 modes: "Always On," "Night Only," and "Off" with a single touch, balancing energy saving and convenience! 【3 Color Temperatures & Stepless Dimming for Scene-Specific Lighting - Eye-Friendly】 3 color temperatures are selectable: 3000K (warm white), 4000K (natural light), and 6000K (daylight).