3 Light Modes and 10 Dimmable Brightness: Clip on lamp offers cool light, warm light, nature light and 10 brightness levels (10%-100%) for each lighting mode; Clip led lamp provides non flickering, no glare, no ultraviolet ray, no frequency radiation eye-friendly light to protects our eye from hurt; Ideal for home office, kids studying, hobby painting, lighting computer screen, sewing machine and work space so on Sturdy Clamp and Flexible Gooseneck Lamp: Clamp with scratch-resistant foam opens up to , which make clamp lamp perfectly clip to work table, computer desks, headboard, bedside, sewing table, different board and shelf, etc; 360flexible gooseneck makes clip on light be bendy to any angles we need; Let's enjoy picture editing, bedside reading, dormitory study, painting, drawing, playing the piano, knitting wool, and all kinds of crafts! Memory and Auto Turn Off Function: Clip desk lamp can be set to turn off automatically after 1 minute; Then we can go back to the bed under the illumination of the clip on lights; And clip lamp will remember the brightness and mode of the last use until cutting off the power supply. USB Plug-in Powered Desk Lamp: The USB plug-in-use design makes power more diversified. Tips: usb reading lamp doesn't include mains. Not rechargeable; Clamp lamp can be powered by usb socket, power bank or laptop; And led lamp consumes less power, suitable for kids, student (dormitory); The power button glows with a tiny blue light to make reading light easier for us to find. Small But Versatile Lamp: With simple design, small desk light is a great light filling thing; The diameter of reading lamp head is about , with about hollow in the middle; The round lamp head can illuminate more uniform light; The wide clamp that can opens to will take up very little space on the desktop and make the table more tidy; The whole body is about long, of which gooseneck is about long, of which usb cable is approx long.