Infinitely dimmable with 3 color temperature modes: This reading lamp offers cool white, warm white, and mixed white (3000-6500K). The brightness is fully adjustable, allowing you to customize both light color and intensity to suit your preference. Equipped with 9 high-quality, glare-free, flicker-free LEDs that help protect your eyes during reading. The lamp features a battery level indicator with 4 LED lights on the clamp, enabling you to monitor the remaining charge at a glance. Powered by a built-in 1000mAh rechargeable lithium-ion battery, this LED book light provides up to 7 hours of continuous use on high brightness and up to 60 hours on low brightness. It can be fully recharged in approximately 2 hours using the included USB cable. Simple one-button operation: Press once to turn on the lamp in mixed white mode, press again to switch to cool white, a third press for warm white, and a fourth to turn off. Hold the button to adjust brightness levels. Lightweight, compact, and portable design with a flexible gooseneck and foldable structure. Ideal for travel, camping, or bedtime reading, this clip-on lamp is easy to carry and convenient to use anywhere.