USB Battery Operated 8 LED Desk Lamp This USB Flexible Desk Lamp Light is perfect for your desktop or small workspace. Plug it into your computer's USB port or a USB hub and gently illuminate your workspace. Plug and play, easy to use. USB interface, USB 1.0/1.1/2.0 compatible. No need external power supply. Power saving design comes with reliable LED light. Comes with the gentle white ray. Without frequency change and good for protecting eyesight. Safe, reliable, high efficiency. Consists of the lampshade, lamp base with flexible tube. Flexible tube allows you to position the light anywhere. On/Off function.