Family Tips: Very suitable for notebooks and desktop computers, power saving, convenient, flexible, easy to carry. Highly recommended. Product Manual: (1) Applicable to laptop or personal computer with USB interface, compatible with USB1.1 and USB2.0. (2) It is used when operating the computer at night, and no additional lighting source is needed, so that it does not affect other people. (3) USB interface DC5V direct power supply, no external power supply is required. (4) Energy-saving design, the working current only needs 30mA. (5) Plug and play, just plug in the USB port to turn on the USB scanner. (6) The metal tube can be bent arbitrarily, so that the light shines in any direction. (7) To turn off the USB scanner, simply unplug the USB connector. Features: USB interface, no need to drive. Plug and play. High brightness, the brightness of the light is enough to illuminate the entire keyboard area. The user operates the computer at night without the need to illuminate the light source additionally, so as not to affect others. --- LED high-brightness lamp head, ensure enough bright, super bright colorful light source; --- Long-life LED, life can reach more than 100,000 hours; --- Flexible metal bellows can be rotated in all directions, freely bent, adjusted angle, without the need for clips, adhesives and other fixing methods, flexible and convenient! --- Smooth and high-grade, latest design metal chrome color; --- Small size, light weight, easy to carry, very easy to put in a briefcase or folder; --- No external power supply, directly from the inserted USB port; --- Can illuminate the keyboard softly without affecting other people around See more? High-bright white LED can ensure clear vision in the dark. When you go online or play games at night, turn off the headlights and plug in such a USB light to protect your eyes from fatigue and save electricity. Can not affect the rest of others, let you enjoy the fun of the network and games. ? Flexible metal bellows can be rotated in all directions, freely bent, adjusted angle, without the need for clips, adhesives and other fixing methods, flexible and convenient!. ? Plug and Play: just plug in the USB port to turn on the USB scanner. To turn off the USB scanner, simply unplug the USB connector. ? Small size, light weight, very easy to put in a briefcase or folder; Applicable to laptop or personal computer with USB interface, compatible with USB1.1 and USB2.0. ? Shell Color: Silver; Total Length: 35cm(13.78in); Material: Metal; Energy-saving design, the working current only needs 30mA. Long-life LED, life can reach more than 100,000 hours;.