[Rechargeable] Built-in 2000mah battery, long battery life, no need to replace the battery.Simply use 5V USB for fast charging.[multifunctional] Built-in rechargeable lithium battery that can be used anywhere, such as bedroom, wardrobe, closet, workshop, garage, staircase, hallway, storage room, attic, kitchen, basement, refrigerator, etc.[easy to install] the lamp has a built-in magnet on the back.No need to screw or drill holes, you know Can it be directly on a metal surface On a non-metallic surface I don't know You can rely on the supplied self-adhesive magnetic mats.[2 touch sensors and 5 light colors] There are two touch sensors on the side of the lamp.You know what It can be opened or closed with one click.By briefly pressing the touch sensor do you know the necessary lighting colorsIf you have any questions, please do not hesitate to contact us, we will answer you