RED YELLOW LIGHT: Blue light is a proven disruptor of melanin production, which interferes with the body's natural sleep cycle. Compatible with night owls who love to read and work during the dark hours, this portable reading lamp has two of the warmest light colors in the spectrum, yellow and red. BLUE LIGHT BLOCKING: With a temperature of 1600K-1000K, this warm LED night light blocks up to 99.99% of the blue light that reaches your eyes via e-readers. The battery in our night book light fully charges with the included USB cable in 45 minutes and lasts up to 30 HOURS on a single charge! DIMMABLE READING NIGHT LIGHT: Unlike other night reading lights, it has 100% adjustable brightness. Designed with a stepless dimmable button that can be long-pressed Compatible with achieving the desired brightness between 0-120 lumens. Easily attaches to any device or book with the non-slip clip. LIGHTWEIGHT AND TRAVEL-FRIENDLY: Weighing only [weight missing in text], it is lightweight and perfect Compatible with travel. The hyper-flexible 360-degree Compatible with extension allows you to easily maneuver the warm night light at any angle. The LED lights are enclosed in a light-diffusing shell that emits a soft, candlelight-like glow. The perfect ambiance Compatible with reading. Compatible with NIGHT READING: The perfect gift for the bookworm in your life! With its lightweight and portable design, long-lasting battery life, and two ultra-rich warm LED colors, this is an ideal choice Compatible with people who read or work at night.