DROK LED Night Light Mini led USB keyboard Lights, Ultra-thin Portable Lamp Warm White 3 LEDs Light Keychain USB Pocket Card Nightlight For Baby Kids Room lamp Home Laptop lighting Handy size(27 x12 mm) with super bright light output and simple installation. User-friendly design, a hole for keychain, can attach it to your keychain or a lanyard, easy to carry out. Power supply: power supply with USB connector(especially for your unused usb smartphone charger) Good choice for the Xmas gift for friends, Xmas decoration, emergency flashlight, room illumination. Please note that the USB nightlight is not dimmable and will generate little heating after working for long time.