BOYON LED Book Light Clip Reading Lamp, Brightest Music Stand Light,Computer Keyboard Light (Eye Care, Rechargeable, Portable, Long Lasting) 1.BOYON Eye Care LED Book Light: no dazzle light and stroboflash. And without ultraviolet radiation 2.Ultra Bright & Energy Saving: 4 energy-efficient LEDs cast 28 lumens of bright white light, and after 3-4 hours charging, it can work for 5+ hours in brightest and 8-12 hours in dimmer. 3.Rechargeable, Long Lasting, Lightweight & Portable: Batteries Operated Durable LEDs last 100,000 hours - no replacement necessary 4.Multi-function & Two brightness settings: stand alone or clip on items.Sturdy clip grips almost anything. Great for low light situations 5.Excellent customer service: If you have any questions, do not hesitate to contact us directly. No question is too small and our goal is for you to be 100% satisfied with your purchase.