7W Mini LED Flexible Gooseneck Desk Lamp USB Powered3 Lighting Modes: Cool White, Warm White and Natural White. 10 Brightness Levels. Multi-function switch. Different light colors and brightnesses that allow you to create the most comfortable and perfect lighting for your needs. USB Powered. Works with most devices that support USB port, like a laptop, power bank, and USB charger. Non-slip padded clamp firmly grasps and won't scratch surfaces. Lamp can be used without being clamped. Full standing height 18"