Pack of 3 - USB Plug Lamp Computer Mobile laptop lamp Power Charging Small Book Lamps LED Eye Protection Reading Light Small Round USB Night LightsEasy to Use: Powered by USB ports using DC 5V power, you can plug it into any USB power source, such as a mobile power source, laptop, PC, or any other device port with USB output. Cool to the Touch: When the LED lamp is light on, it is also cool to the touch, which saves energy and will never burn out or need to be replaced. Compact Size: The compact design saves space and keeps the second socket available. Wide Usage: It is very suitable for