Description: Rechargeable: The USB rechargeable lamp holder has built-in USB and does not require an additional cable. Connect directly to computers, power bank, wall outlets, adapters, car chargers and more. Small and Light: 40g, lightweight and small, very suitable for book-fixed night reading. It is completely flat and can be folded thinly, which is convenient for reading in the back seats of airplane, trains and cars. Flexible Reading in Bed: The 350 flexible stand can be bent to any angle for best display effect. The LED lens can be rotated 90 counterclockwise and clockwise and 45 downward to completely illuminate 2 pages without disturbing the bed. Adjustable Brightness: White light, warm light, middle light. Press button to adjust 5 brightness levels, soft without glare, no eye strain for enthusiastic readers' children You can enjoy reading. Great Gifts: Small in size and versatile, this book lights is a great gift for enthusiastic readers who want to read anytime and anywhere. Can also be used as a bookmark or mini flashlight in the event of a power outage. Specification: Brightness Levels: 5 Light Color: 3 Size Chart: 10.5cmx3.5cm/4.13inchx1.38inch Package Includes: 1 Reading Lights for Books Note: 1.Please allow 1~3 cm error due to manual measurement, thanks. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand, thank you.