【USB Rechargeable & Long-lasting】No extra cables or batteries are needed, compatible with any USB port on your computer, adapter or USB outlet. This rechargeable book light has a built-in 300mAh battery, which can continuously provide 8 to 80 hours of reading time depending on the brightness you set.

【Flexible and Adjustable】The LED lens can rotate 90° counterclockwise and clockwise, and tilt 60° downward; the 150° flexible bracket can be bent to the right angle for optimal viewing. No need to constantly adjust the position of the light.

【Three Color Modes】Our reading light offers three color modes, namely amber (1600K), natural light (4000K) and cool light (6000K). Long press to switch color modes, short press to switch light brightness, making this clip-on reading light ideal for nighttime bedside reading.

【Lightweight and Portable】Weighing 1.37 ounces (39 grams), it is small and light, suitable for clipping on books for nighttime reading; it can be folded completely flat for easy reading when traveling on a plane, train or in the back seat of a car.