[3 Colors, 9 Brightness Levels] The book reading lamp has three colors: white, warm white, warm and 30%, 60% and 100% brightness to choose from, so you can keep your eyes comfortable and enjoy reading in bed without disturbing your roommates. Short press to change color, long press to change brightness. Brightness memory function, which will maintain the brightness level you previously selected. [USB Charging] The reading light does not need extra cables or batteries. It can be easily charged using the built-in USB. It can be directly plugged into computer, power bank, adapter, car charger or USB socket for charging. Charge for 1.5 hours, up to 8 hours (at the brightest setting). [Flexible Lighting Angle] The reading light is completely flexible in design. The LED lens rotates 90 clockwise and 90 clockwise and 45 down; The 315 flexible stand can be bent at any angle for a better view. There is no need to constantly reposition the light. [Small and lightweight] The design of the reading light is small, 1.3 ounces, small and lightweight. It is very suitable to be tied to a book when reading at night. It can be completely folded into a thin, flat shape, which is convenient to read when traveling, knitting, camping, and repairing in the back seat of an airplane, train, or car. [Multi-use] Reading The lamp can also be used as a bookmark or mini flashlight when the power is off. The perfect LED reading light is suitable for paperbacks, magazines, bedtime stories, etc. It is a perfect gift for children, friends and family.