Overview: Directly plug the USB (Universal Serial Bus) LED Light into the USB (Universal Serial Bus) port on your NOTEBOOK or PC. No external power supply is needed, just easily turn on your NOTEBOOK or PC to power the USB (Universal Serial Bus) LED Light. Switch-less USB (Universal Serial Bus) LED light. Remains on until you unplug the USB (Universal Serial Bus) LED Light or turn off the NOTEBOOK or PC. Gently adjust the flexible neck of USB (Universal Serial Bus) LED light to position the light anyway you wish. Power wastage less than 40 m A. Power saving design comes with reliable LED light. LED light is rated to average 8000 hours of use. Durable featherweight construction & small enough for taking away easily. It fits into your case as easy as it fits your style. 1-LED light provides a bright & large working area, adjustable gooseneck for easy light positioning High-bright white LED can ensure clear view at night Specification: Weight Approx:43.1g Size Approx:44 x 1.4 x 0.9