Small and light Mini size design, small and light, clip onto books for night reading. Fully foldable, flat and thin, easy to read on airplanes, trains, or in the back seat of cars. Usb charging Builtin USB for easy charging; plug directly into a laptop, power bank, wall adapter, car charger, or USB socket to charge. No additional cables required. 500mA lithium battery, 1.5 hours of charging can last for about 16 hours (brightness setting). 3 lighting modes Three lighting options: warm white, daylight, and cold light. Eyeprotecting light creates a private reading space that does not disturb others. Use scenarios Night reading in bed: clip to a book to illuminate your page without lighting up the room. Travel and commuting: compact and foldable for use on airplanes, trains, or in the back seat of a car. Shared spaces: private, focused lighting that keeps your reading discreet and unobtrusive. Key attributes Function: clipon, foldable reading light with USB charging and long battery life. Compatibility: powers from USB sources (laptop, power bank, wall adapter, car charger, USB socket). Size and design: mini, small, and light with a flat, thin form for easy packing. Performance: 16 hours of runtime on a full charge at the chosen brightness, 1.5 hours to fully charge, 3 lighting modes for different reading environments.