About this item Flexible book light head - The LED head of the book light can be rotated 90 counterclockwise, 180 clockwise, 45 downward, 350 flexible stand bends to any angle for your best viewing. Perfectly meet your lighting direction needs. USB Rechargeable Reading Light - Built-in 200mAh lithium rechargeable battery and charged by any universal USB interfacecomputer, power bank , adapter, car charger or USB socket for charging. No cables needed, easy and convenient. A full charge takes 1.5 hours and provides 8 hours of illumination. 3-level brightness clip-on light with ON/OFF/DIMMER switch --25 lumens, 3000K warm white light, natural white light 4300K, cold white light 8000K. Turn on/off the book light and adjust the brightness from 10% to 100% by pressing the manual switch. Good for eye protection and creates a private reading space for you without disturbing your roommate. Lightweight and Portable Reading Light - This slim and lightweight children's book light is ideal for cut a book when reading at night; can be completely folded flat and slim, portable put in pocket, suitable for bed reading or travel reading. adults and bookworms can also be used as a bookmark. Perfect LED reading light for paperbacks, magazines, bedtime stories, newspapers, etc.