Book Reading Light with Clip, iMagitek Eye-Care Book Light, Clip On Bed Reading Light Perfect for Night Bookworms, Kids, Travel Car Reading and Music Players (Battery Operated) Powered by 2 MethodsIt can be operated by 3*AAA Battery or powered by direct electric using a USB cable and adapter(3*AAA Battery, USB Cable and Adapter are not included) Super Bright The light consists of one 3W cob & 2 different brightness modes. You can control the brightness of each LED and adjust is as you please. The LEDs(on full-beam) are super bright and can easily light up 2 pages of book, notebook & whatever else you'd like lit up. Lightweight & Compact Your clip-on light will be super easy to travel with. Not only it is super lightweight, the bendable arms make it very easy to wrap up into a very small bundle allowing it to be 100% compact and portable. Multiple Uses It is Best Suited For: Music Stands, Reading, BBQ, Grilling, Desk & Travel - Used By Musicians, Readers, Artists, Chefs. Eye Care No flickering, no dark area, and no ghosting to protect your vision and reduce eye fatigue.