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Straight in USB mini eye protection folding book clip light, portable and simple eye protection reading light, 3 color temperature+9 levels detachable small book light This USB LED small book light: 【 4 colors, 3 lighting modes 】 (50% warm white, 100% warm white, 50% daylight, 100% daylight, 50% cool light, 100% cool light) You can choose. Protect your eyes and create a private reading space that does not disturb others 【 USB Charging 】 Built in USB for easy charging, simply plug into a laptop, power bank, adapter, car charger, or USB socket to charge without the need for additional cables. A 200mA lithium battery can last for about 8 hours on a 1.5-hour charge (brightness setting). No more wasting money on batteries 【 Compact and Lightweight 】 Mini size design, compact and lightweight, suitable for being clipped onto books during nighttime reading; Fully foldable, flat and lightweight, easy to read on the back seat of an airplane, train or car 【 Flexible Lighting Angle 】 With a completely flexible design, the LED lens can rotate 90 ° horizontally and 45 ° downwards; The 315 ° flexible bracket bends to any angle for your viewing, without the need for constantly repositioning the small book light [Product Guarantee] Passed CE, RoHS, UKCA certification. This desk lamp can also be used as a bookmark or as a mini flashlight during power outages. The perfect LED reading light for paperback books, magazines, bedtime stories, and more. A great gift for your children, friends, and family Used as auxiliary lighting in low light conditions, with sufficient brightness to read without harming the eyes In dark environments, this brightness of light is softer and less glaring. Humanized design, adjustable brightness according to needs, one click solution to all problems.