Stepless dimming: Long press the button to adjust the brightness from 100 percent to 20 percent to adapt to different reading environments. Easily switch between 3 color temperature lighting modes (Mixed Color - 9 LEDs on/Cool White - 5 Cool White LEDs on/Warm White - 4 Warm White LEDs on) at the click of a button. Eye-protecting reading light: no flicker, no shadow, no glare. Provides natural and soft light, which will not cause eye fatigue even if used for a long time. Enjoy reading time without disturbing your partner or roommates. 1000mAh Rechargeable Battery: The built-in 1000mAh battery takes only about 2.5 hours to fully charge and supports up to 80 hours of lighting at lowest brightness. 4 LED indicators will always show the remaining power of the lamp. 360 Flexible Neck and Sturdy Clamp: The 360 bendable gooseneck can be rotated to any angle you want. Anti-slip clip design allows it to clip securely to e-readers, books, shelves, and more. Portable and versatile: The lightweight and sturdy book lamp can stand independently and has a non-slip pad on the bottom. Free your hands and enjoy reading before bed, working, traveling, camping, etc. Note:1. Please allow a little error due to manual measurement. Please make sure you don't mind before bidding.2. Color may vary due to different monitors, please understand. Note:Hello, please pay attention to your delivery address when purchasing products. If your delivery information (such as name, street, house number, doorbell/mailbox without name, etc.) is incorrect, the order will not be delivered correctly.)