Modernhome MAD-242/12 Motion Activated LED Desk Light Motion detectors allow you to turn the lamp on or off with just a simple wave of your hand Adjust the brightness by holding your hand over sensor until you reach the desired amount of lighting Added option of disabling the motion sensor for use as a touch-operated LED desk lamp Requires no batteries and is USB-rechargeable, a 1-hour charge provides up to 8 hours of continuous lighting Contains 14 super bright and energy-efficient LED lights, which can provide up to 100,000 hours of use