Description Screen Glare-Free Flicker-Free - with clamp design and the asymmetrical light design, it only illuminates on the keyboard and desktop, eliminates the flicker and glare of typical desk lamps on computer monitors.Space-Saving Aluminum Body - A space-saving breakthrough design, clamp onto the top of the monitor compared with ordinary desk lamps, it saves 90% of desk space.Adjustable Brightness 3 Color Temperature - Press Control, 3 levels of color temperature: warm light, mix light, white light.5%-100% brightness step-less dimming.Warm light for reading, cool light for work efficiency.For 0.3 inch-0.8inch inches Monitor Thickness - Compatible with flat monitor, Powered by your computer, wall charger, USB hub, etc.The USB power cord length is 5 feet(included).Easy to Set and Use - just clamp Tool-Free improving your viewing experience for your everyday computing tasks, perfect for watching videos, gaming, office working, reading, studying, design, etc.Rated output 5V,700mA Rated power 3.5W 30 LEDs white light; 30 LEDs warm light 30LM illumination level Adjustable colour temperature 2900K-4200K-6000K Colour:black Material:Aluminum alloy + ABS Package Contents: 1 * Screen hanging light 1 * USB-C charging cable 1.5m 1 * English manual Only the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing.The measurement allowed error is +/- 1-3cm.