Description: This clamp light with a stable and flexible tube which can be twisted to any positions owns 3 distinctive light modes to meet any different lighting requirements. Each light brightness is adjustable from level 1 to level 10. Features: 3 light colors: a simple button to switch 3 distinctive light modes. White light for working, mixture of white light and warm white light for reading, warm white light for relaxing. 10 level dimmer: you can set the color temperature and adjust the brightness to meet your various light moods. USB port design, can be powered by USB charger, USB power bank or laptop. Eye-protective: high quality LED bulbs, good lumen and high CRI, flicker-free, anti-glare light without strobes and radiation. Eco-friendly: unlike LED or florescent lights, this clamp lamp doesn"t contain any mercury or any other environmentally harmful substances. Clamp design and fully-adjustable: strong bendy tub enables you to flexibly swivel the lamp and adjust the light position as you like. Strong clamp opens up to 70mm width and can be used perfectly with music stands, bookshelf, office tables, computer desks, headboards, etc. The rubber in the clamp help to create friction with the desk, at the same time it prevents any damage to the desk surface. The clip is made of aluminum alloy. Surface finish, polish, artistic. A part of lamp housing cover is made of aluminum for good heat dissipation. Specifications: Light colors: White color, warm white color, mixture color of white and warm white Brightness level: 10 levels for each light color LED quantity: 36 pcs Input: DV 5V Power: Max.10W Color temperature: 3000K-6500K Luminous flux: 260-280lm Lifespan: 50000 hours Material: Aluminum alloy Color: Silver Cable length: 2000mm / 78.74in Tube length: 430mm / 16.92in Lamp length: 220mm / 8.66in Clamp gap width: 370mm / 1.45in Item weight: 361g / 12.73ounces Package size: 295 * 125 * 80mm / 11.61 * 4.92 * 3.14in(Length * Width * Height) Package weight: 482g /17ounces Note: This item is non-waterproof, please use it carefully. Package List: 1 * Clamp Light with USB Cable 1 * User Manual Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.