Customize your lighting: Our bookend reading lights feature 3 color temperatures (3000K6000K), including warm yellow, cool white, and a blend of warm and cool, with 5 brightness levels. A long press allows for stepless brightness adjustment, providing precise control. Increased eye comfort: Enjoy a flicker-free reading experience with no glare or shadows, ensuring optimal eye protection and comfort during prolonged use. Rechargeable battery: The USB clip light has a built-in 600 mAh battery, offering up to 5 hours of continuous use at high brightness and 11.5 hours at the lowest setting. Easily charge the device using the included USB Type-C cable. Fully charges in 2 hours. 360 flexible neck and sturdy clip: The reading lamp has a 360 adjustable neck for precise positioning. The secure clip with a 1.57-inch opening firmly holds books, e-readers, and tablets, ensuring stability. Lightweight and portable: The desk lamp is bendable and foldable for convenience. It can be placed or attached as needed. Its compact design makes it easy to carry in a pocket or bag. Ideal for nighttime reading while camping or traveling. Suitable for attaching to books, laptops, beds, and shelves.