Flexible Lamp Head The LED book lamp head can be rotated 90° counterclockwise 180° clockwise 45° clockwise downward 350° flexible stand bends to any angle for best viewing Perfectly meets your lighting direction needs USB Rechargeable Reading Light Builtin 200mAh lithium battery and charged via any universal USB interface computer power bank adapter car charger or USB socket for charging No cables needed simple and convenient A full charge takes 15 hours and provides 8 hours of lighting 3level brightness with clip with ON OFF DIMMER button 25 lumens 3000K warm white light white light natural 4300K cool white light 8000K Turn on off the book light and adjust the brightness from 10 to 100 by pressing the manual button 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 attaching to a book when reading at night can be folded completely flat and slim portable to put in your pocket suitable for bedside reading or reading on the go Versatile bookmark light This perfect gift for children adults and bookworms can also be used as a bookmark Perfect LED reading light for paperbacks magazines fairy tales newspapers etc