USB Rechargeable Book Reading Light - Portable Clip-on Mini LED Lamp, Adjustable Brightness & Flexible Angles, Lightweight Travel Lamp for Plane, Train or Car, Suitable for Night Reading in Bedbr>Feature:br>Easily charge with built-in USB, plug directly into your laptop, power bank, adapter, car charger or USB socket to charge, no extra cables required. 160mAh Lithium battery, lasts about 6-8 hours on a 0.25 hour charge (under brightness setting). No more wasting money on batteries.br>30%, 60%, 100% brightness options allow you to choose the perfect brightness to keep your eyes comfortable and enjoy your reading time in bed without disturbing your roommates. Short press to change the brightness, long press to turn off the book light. Brightness memory function, it will keep your previously selected brightness level.br>Mini size design, 1.37 oz, compact and lightweight, ideal for clipping to a book for night reading; fully folds flat and slim, making it easy to read in the back seat of a plane, train or car while traveling.br>Fully flexible design, the LED lens can be rotated 90 left and right horizontally and 45 downward; the 315 flexible stand can be bent to any angle for optimal viewing without constantly changing the light.br>This book light can also be used as a bookmark or mini flashlight when turned off. The perfect LED reading light for pocket books, magazines, bedtime stories and more. Gifts for your kids, friends and family.br>br>Specification:br>Material: ABSbr>Housing color: black/white/blue/pinkbr>Three light modes: white light, warm light, white light + warm lightbr>Brightness level: low 30%/medium 60%/high 100% (three brightness levels for each lighting mode)br>Battery capacity: Lithium battery 160mAh (4020319l is the battery model)br>Color temperature: 5500-6000k for white light, 2700-3500k for warm lightbr>Lumens: 22-24br>Product size: 10.5x4.6x1.3cm/4.13x1.81x0.51inbr>Color box size: 10.8x4.8x1.5cm/4.25x1.89x0.59inbr>Gross weight: about 60 gramsbr>Battery life: 6-8 hours in monochrome light mode, about 1 hour in two-color light modebr>Light source power: 1Wbr>br>Note:br>Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!br>Please allow 1-2cm measuring deviation due to manual measurement.