Stepless Dimming & 3 Color Modes: Mixed Light, White Light and Amber Light. Short press the button to change the mode, long press to adjust the brightness from 10% to 100%. You can easily combine color temperature and brightness to meet different needs. Eye Protection: With professional eye protection LED lamp beads, emit light without flicker, shadow and glare. The natural soft light will not strain your eyes even after prolonged use and allow you to fully enjoy your reading time without disturbing Rechargeable Battery: Built-in battery provides 6H continuous use at high brightness and supports up to 80H lighting at lowest brightness. It only takes two hours to fully charge, and 4 LED indicators can help you know the current battery status 360 Flexible Neck and Sturdy Clip: 360 bendable gooseneck can be rotated to any angle you want. Anti-skid clip design makes it securely clamp on e-readers, books, shelves and anywhere else without worrying about leaving marks, scratches or moving Light and Portable: Small size and flexible design makes it easy to carry and store in a backpack without taking up space. Whether you are on the go or at home, the stepless dimming book light will be a great choice for your night reading