Flexible book head - LED book light head rotates 90 counterclockwise, 180 clockwise, 45 down, 350 The flexible stand can be bent to any angle for optimal viewing. Perfect for your lighting direction. Please input a USB rechargeable reading light - built-in 200Mah lithium rechargeable battery and charge it via any universal USB interface (computer, power bank power supply, adapter, car charger or USB socket). No cable needed, simple and convenient. Full charge takes 1.5 hours and provides 8 hours of light. 3 Brightness Lamp with On/Off/Dimmer Switch - 25 Lumens, 3000k Warm White Light, 4300k Natural White Light, White Light cold 8000k. Turn on/off the book light and adjust the brightness from 10% to 100% by pressing the manual switch. Helps protect eyes and creates a private reading space for you without disturbing your roommate. Lightweight portable reading light - this is a lightweight children's book light, ideal for cutting books during night reading; Fully foldable in flat and slim shape, portable in pocket for reading in bed or while traveling. Versatile bookmark lamp - It is an ideal gift for children, adults and bookstore mice which can also be used as bookmarks. LED reading light for books, magazines, bedtime stories, newspapers, etc.