Features: Clip On Reading Light, featuring 3 color and dimmable brightness to cater to all your lighting needs. Equipped with flexible gooseneck and clip with foam padding, this LED desk lamp offer customizable positioning without damaging furniture surfaces. For students, professionals, and book readers, the lamp provides eye care lighting that reduces strain during long hours of studying, working, or reading. This USB clip lamp easily adapts to various environment, enhancing your productivity and comfort. For book reading light practical multifunctional clip table lamp outdoor night reading LED light Specifications: Power: USB Cable Power Supply or 3AA Batteries Power Supply (3AA batteries not included) Color: Three Color Lights (White, Yellow, Mixed Lights) Adjustable Brightness Usb Cable Length about 2Meters/78.74in Can Be Clamped On 4.50cm Thick Object Lamp length about 21cm/8.226in width 5.0cm/1.96in Package Includes: 1Set LED Lamp note: Due to the problemsof lighting effectsand shootingangles, there will be tolerances in product, please understand. Please allow 0-1cm error due to manual measurment