Liying Adjustable Flexible Eye Protective Energy Saving 28 Led USB Led Charging Table Desk Lamp Light Computer Laptop Pc Desktop Keyboard Night Light - For Reading, Studying, Working, Etc. (Black) Very novel and convenient design: powered by either USB charging port or 3 batteries. Soft day white light, eye protective, energy saving. Clamp base, various usages, can be clamped on your computer, desk, books, bed, etc. No radiation, no ultraviolet, easy operation, easy storage, long service life. Four colors, simple, cute and fashion, can be also used as decorations.