These USB Light gadgets are perfect for anyone who needs a little reading light now and then. It works great as a computer light, map light or laptop light while at home, work, travel or recreation. It also works great as a substitute for non backlit key boards. These computer lamps feature a goose neck arm with LED lights, On / Off switch and adjustable brightness settings. Design - Each USB keyboard lamp is designed with a flexible goose neck arm which allows you to shed light to your monitor screen, key board or anywhere you need it! Compatibility - This LED lamp is compatible with USB 2.0 and 3.0 ports on your laptop, net book or PC. Use - These USB LED computer lights have multiple uses. Each can be used at home while reading in the bedroom, living room, coffee table, kitchen, dj booth, music studio mixer or home desk study. You can also use them in the office, while traveling on an airplane, coffee shop, vehicle, camping or other remote location day or night. We dont recommend you connect this lamp to device ports on printers, TVs, smart chairs, and other non-host USB devices.