Product DescriptionLuminous flux580lm(max)Input voltage(V):100-240V 50/60 HZOutput voltage(V): 5V-1AColor temperature:3000k/4000k/6500kPower: 7WCRI: Ra>80Color: Blackmaterial: metalPackage content: 1*Led clip desk lamp1.Flexible Gooseneck Design The flexible and infinitely adjustable neck and head can be adjusted up and down 180 and rotated 360 for easy positioning and setting of perfect light directions as needed.2.Dimmable10 Brightness Levels - Press the brightness button and you can easily adjust the brightness between 10% and 100% to achieve the perfect lighting. easily find the perfect lighting for your project. 3 color temperatures optional - Reading lamp has 3000K-4000K-6500K (3 color temperatures) Meets your different lighting needs.3.USB Powered and Memory Function This desk lamp comes with an adapter. Insert the USB cable into the power adapter, computer or other USB devices to power the clip lamp. The brightness memory will remember your current brightness when you turn off the light. (Note: if you turn off the power supply instead of turning off the switch, it will release all settings.)4.Desk Lamp Clip Easy to Install The clip on the lamp with strong metal clip can be clamped on any flat surface less than 4-6 cm (max) thick.5.Professional Eye Protection Adopting diffusion translucent material, close to daylight illumination, emits soft light without ghosting, glare or flickering. led work light suitable for bedside table, reading, music stand, drawing, work, study, etc.