Infinitely dimmable with 3 color temperature modes: This reading lamp offers cool white, warm white, and mixed white (3000-6500K). The brightness is adjustable, allowing you to customize the lighting to your preference. Equipped with 9 LEDs and a battery indicator: The glare-free, flicker-free LED light source helps protect your eyes during reading. The clamp features 4 indicator lights to show the current battery level. USB rechargeable with large capacity battery: The built-in 1000mAh rechargeable battery provides up to 5–7 hours of continuous use on high brightness and up to 60 hours on low brightness. Fully recharges in approximately two hours using the included USB cable. Simple one-button operation: One press turns the light on in mixed white mode. Subsequent presses cycle through cool white, warm white, and off. Adjust brightness by pressing and holding the button. Slim and portable design: Lightweight and compact, the lamp can be bent and folded for easy storage and transport. Ideal for use while traveling, camping, or reading at night.