DROK 5PCS 3LEDS Handy USB LED Night Light 5V 150mA 6000k Pocket Nightlight with USB Connector and Touch Dimmer Switch Bright White Light Dimmable Lamp for Home Decoration Xmas Gift Camping Plug into USB port, then touch the exposed contacts to turn ON or OFF gradually or adjust the LED brightness. 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 smart phone charger). Good choice for the Xmas gift for friends, Xmas decoration, emergency flashlight, room illumination. Note: the USB nightlight will generate a little heating after working for a long time.