This laptop plug in light comes with five super bright white LED’s that last up to 100,000 hours. No batteries required; the LED light plugs directly into the USB port on any computer or other device. This laptop computer light has dual light output; the super bright white light illuminates from the front and the soft blue up-light illuminates from the back for reduced eyestrain. Features one-touch ON/OFF/DIMMER operation. Press once for full brightness, again for softer light and a third time to turn the light off. This USB light has an 8″ flexible neck for positioning at almost any angle. Perfect for school, home, the office, travel and much more! Assembly level/degree of difficulty: No Assembly Required.