RED & AMBER LIGHT: Blue light is a proven disrupter of melanin production, harming the body's natural sleep cycle. For night owls who love to read & work during the dark hours, This portable reading light has two of the warmest light colors in the spectrum, Amber & Red.BLUE LIGHT BLOCKING: With a temperature of 1600K & 1000K, this warm night LED light blocks up to 99.99% of blue light that reaches your eyes through e-reading devices. The battery on our night book light fully charges with included USB cable in 45 minutes, and runs up to 30 HOURS on one charge!DIM READING NIGHT LIGHT: Unlike other night reading lights, has 100% Adjustable Brightness. Designed with a stepless dimmable button that can be long-pressed to reach the preferred level of brightness between 0-120 lumens. Attaches easily to any device or book with the non-slip clamp.LIGHTWEIGHT & TRAVEL-FRIENDLY: Weighing at just , it's lightweight & great for traveling. The hyper-flexible 360-degree extender allows you to easily maneuver the warm night light at any angle. The LEDs are encased in a glow diffusing shell that emits a soft, candle-like glow. The perfect ambiance to read.FOR READING AT NIGHT: The are the perfect gifts for the bookworms in your life! With its lightweight & portable design, long-lasting battery, and two ultra-rich warm LED colors, this is an ideal choice for people who read or work at night.