HOME CUBE Plastic 3D Printing LED Touch Control, Adjustable Brightness, USB, Seamless Lunar Night Lamp with Stand, 5.9-inch (White) How to use: control lamp lithing by touch switch on the buttom short touch: switch lamp and change colour, tap once to activate table lamp on cool white mode, tap twice to glow warm yellow light, tap third to turn off. Long touch: when lamp on any colour modes, long press touch switch to change the brightness. Specifications: name: 3d printing moon lamp bulb: led diameter: 15inch power:1w power supply: usb dc 5v battery capacity: 240mah charging time: 3 hours lighting colour: white & warm light working time: 4-20 hours (depends on brightness you choose) package include: moon lamp*1 usb charging cable*1 wooden stand*1