Features:-It has 3 color temperatures, 3200K-6500K (warm light, natural light, white light), and 10 levels of brightness adjustment.-Various lighting angles can be adjusted by adjusting the rotating arm and clamp for flexible use.-You can put it away at any time when not in use, so you don't have to worry about occupying desktop space. When you need to use it, just pull it to the angle you want.-Using LED lamp beads, the light is soft, non-dazzling, no flicker, and friendly to eyes.-Suitable for bedroom, living room, study room, library, bar, cafe, game room, etc.Specification:Arm length: 14+14.5+13 inchesColour: blackColour temperature: 3200K-6500KLifespan: 50,000 hoursUSB: 5V2ALight source: 2835 0.2W LEDLumen value: 450lmColor rendering index: >85Ma.