Multi Lighting Modes: The book light has bright/dim white and bright/dim yellow lighting modes. LED clip lights can easily satisfy your needs of daily reading, office, kids studying, makeup and other scenes. 360° Flexible Clamp Light: The 15-inch gooseneck of reading lamp can be rotated 360° to provide flexible lighting. Attached with foam cotton, the clip protects your furniture from scratch. The max width of clamp is 2.3 inches. Eye-Caring Reading Lights for Books in Bed: Consisted of 36 LED lamp beads, the clip on light gives off non-flickering light, good for your eyes. LED light source has a better performance and a longer service life. USB Powered(AC adapter NOT INCLUDED): With a 59-inch USB cable, the reading light can be conveniently connected to a USB port on your computer, AC adapter or power bank (AC adapter NOT INCLUDED). Note: This light is not powered by electric wall plug. Cost-effective Bed Lamp: The clamp lamp has a wider lighting range and greater brightness than small desk lamp, and can be clamped on bed headboard, computer, desk, etc. Eye-Caring and Energy-Saving. With high quality LEDs, the clip lamp with high brightness can cover larger area. Soft, comfortable and non-flickering, friendly to your eyes. LED light source, most of electricity converted to light and have long service life as well as good lighting effect.