Infinitely dimmable with 3 light modes: This reading lamp offers three color temperature settings—cool white, warm white, and mixed white (3000-6500K). The brightness is fully adjustable, allowing you to customize both lighting color and intensity to suit your preference. Equipped with 9 LEDs and a battery indicator: The clip lamp features high-quality, glare-free, flicker-free LED lighting that helps protect your eyes during reading. The clamp includes 4 indicator lights to easily monitor the battery level at a glance. USB rechargeable with long-lasting battery: The LED book light has a built-in 1000mAh rechargeable battery, providing up to 5–7 hours of continuous use on high brightness and up to 60 hours on low brightness. Fully rechargeable in approximately 2 hours using the included USB cable for convenient, cord-free operation. Simple one-button control: All functions are operated with a single button. Press once to turn on in mixed white mode, twice for cool white, three times for warm white, and four times to turn off. Hold the button to adjust brightness levels smoothly. Slim, lightweight, and portable: Designed to be compact, flexible, and foldable, this LED reading lamp is easy to carry. Ideal for travel, camping, or nighttime reading on the go.