EYE PROTECTION - Most electronic devices such as mobile phones and computers emit blue light, which may potentially harm the eyes by affecting the retina. This book light emits minimal blue light, helping to reduce exposure and protect your eyes. Additionally, it helps support natural sleep patterns by minimizing blue light emission that can interfere with melatonin production. STURDY CLAMP AND FLEXIBLE NECK - The flexible gooseneck allows easy adjustment to direct light precisely where needed. The clamp features a rubber pad to protect surfaces and provide secure, stable attachment. This book light can be clipped onto headboards, laptops, books, and more. RECHARGEABLE LITHIUM BATTERY - Built-in 1000mAh rechargeable lithium battery with USB charging interface. Can be charged using a USB charger, computer USB port, power bank, mobile adapter, or car USB port. A blue indicator light turns on during charging. LIGHTWEIGHT & PORTABLE - Weighing only 83g, this compact LED reading light is ideal for travel, camping, or everyday use. Its lightweight design makes it easy to carry in bags or pockets. 7 COLOR TEMPERATURES & 3 BRIGHTNESS LEVELS - Offers multiple color temperatures and three brightness settings to suit different lighting needs. Adjust easily with a single button to find the most comfortable light level for reading or working. Ideal for nighttime reading without disturbing others. Color: Black Material: ABS Size: 24cm Package Contents: 1 x LED Light 1 x USB Cable Note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3cm.