Overview: Directly plug the USB (Universal Serial Bus) LED Light into the USB (Universal Serial Bus) port on your laptop computer or PCNo external power supply is needed. Just easily turn on your laptop computer 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 laptop computer or PCGently adjust the flexible neck of USB (Universal Serial Bus) LED light to position you wish Power saving design comes with reliable LED light. LED light is rated to average 8000 hours of use LED light provides a bright & large working area, adjustable gooseneck for easy light positioning High-bright white LED can ensure clear view at