[Amber Light & Daylight] - This children book light has 2 lighting modes for your choice: 4000K white light and 1550K amber light. It can block 99.94% blue light and good for eye protection. Change the modes by pressing the touch switch on the light head. [Brightness Dimmable] - The reading light is 25 lumens, the brightness can be adjusted from 100% to 50%. [USB Rechargeable] - The clip light can be easily and conveniently charged via any universal USB interface. [Flexible Lighting Head] - The LED head of the book light can be rotated 90 counterclockwise, 180 clockwise and 45 down to perfectly meet your lighting direction needs. [Cute Design] - Novel design, multiple color options, an ideal gift for kids, adults and bookworms. Built-in 200mAh lithium battery and universal USB interface, simple and convenient. Just plug the book light into the USB outlet, computer, power bank or other USB devices. The LED head of the book light can be rotated 90 counterclockwise, 180 clockwise, 45 down and 350. Perfectly meet your light direction needs. Read at night with this book light to keep your eyes comfortable and enjoy reading in bed without disturbing your roommate. The book light can block 99.94% blue light, good for eye protection, especially for kids. It is small and foldable, easy to attach to a book, suitable for children to read.