Adjustable brightness: three brightness modes: warm white, natural white and daylight. Long press the brightness switch on the back of the lamp holder to adjust the brightness (0%~100%) and color temperature of the book lamp. Flexible design: The LED gooseneck clip can rotate 360 and adapt to your needs. Of course, the flicker-free lamp in the reading lamp does not produce lead or mercury and can protect your eyes from light. Wireless charging: The rechargeable LED reading light can be charged through the USB interface, and can be directly plugged into the USB interface to charge. The charging time is only 60 minutes, and it can be used for more than 480 minutes with a full charge. Easy to carry: The book lamp weighs only 50g and is easy to carry. With this lightweight design, the book light can be easily fixed on books and magazines, making it a perfect reading companion for travel and trains. Multifunctional clip: The reading lamp and clip are detachable, and the book lamp can be used as a bookmark. The bottom of the clip is magnetic, so you can attach it to any iron product. Charging time: 1h Switch method: touch Number of LEDs: 2 Working time: 24 hours Charging type: USB charging wireless Package includes: 1x LED book light/user manual Due to photo lighting problems, the color of the picture may be slightly different. Due to manual measurement, the size may have an error of 1-2cm.