[3 colors, 9 brightness levels]reading lights are available in white, warm white, warm white, 3 colors and 30%, 60%, and 100% brightness options, allowing you to choose the perfect brightness to make your eyes comfortable , Enjoy reading time in bed withoutdisturbing your roommates. Short press the switch color, long press to switch the brightness. Brightness memory function, it will keep the brightness level you previously selected. [USB rechargeable] The reading light does not require additional cables or batteries, and can be easily charged with the built-in USB, directly plug it into your computer, mobile power, adapter, car charger or USB socket for charging. Charging for 1.5hours, up to 8 hours (at the brightest setting). [Flexible lighting angle] book reading light adopts a flexible design. The LED lens can be rotated 90 counterclockwise and clockwise, and 45 downward; the 315 flexible bracket can be bent to any angle to obtain the best viewing effect. No needto constantly reset the lights. [Small and lightweight] reading lamp adopts a small design, 1.3 ounces (about 36.9 grams), small and light, very suitable for reading at night when clipped on a book, and can be completely folded and slim, convenient for the back seat of an airplane,train or car On reading, traveling, knitting, camping and repairing. [Multi-purpose] book reading light can also be used as a bookmark or mini flashlight. The perfect LED reading light, suitable for paperback books, magazines, bedtime stories, etc. A great gift for children, friends and family. Note: Dear buyers, pleasecharge before receiving the goods!