3 Color Modes& 5%-100% Brightness LED book light has 3 colors reading light, Cool White & Warm White and Mixed light(3000K to 6000K). 5%-100% brightness adjustable, meeting your different light demands in daily life. Long press to control color temperature, short press to control brightness. Equipped with 9 upgraded LED to deliver more uniform luminance than others. 360 Flexsible and Adjustable clip Using the flexible arm, you can freely adjust the required angle and distance within 360 degrees, and firmly illuminate the necessary position. This product is a clip-type table lamp. It can be connected to the bed or desk. Rechargeable Lithium Battery The built-in rechargeable lithium battery allow you to enjoy your wireless reading time conveniently. Supporting 4 power mode, laptop, power banks, 5V phone charger (not included) and car charger, enabling you to recharge your reading light anytime, anywhere. Portable Reading Light & Multiple Use Small in size, 2.1oz lightweight, but rich in function. Perfect as book lights, bedside lamps, computer light, desk light or for headboard reading, camping, makeup, sewing, painting and so on. Double rubber pad on the clip protects pages from being damaged.