【3 Brightness Modes】Reading light with 7 LEDs/ 4 cool white LEDs/ 3 warm white LEDs, simply press the button at the top of the lamp to turn on, change 3 different light colors (Cool White Light, Warm Light and Mixed Light) and turn off. 【Eye Protection】Book light has natural and flicker-free light to protect your eyes from light damage. The 360° adjustable flexible gooseneck makes it and the soft light also allows you to read in bed at night without disturbing your friend. 【Rechargeable Battery with USB Cable】Built-in rechargeable lithium battery can last 4-8 hours of lighting time under full charge. The desk lamp comes with a USB cable for charging. And the charging indicator clearly shows the charging status to avoid overcharging. 【Flexible and Portable】 The weight is 60g, it is very lightweight and has a mini size with a pouch for carrying when traveling. You can take it for traveling or camping. 【Wide Application】 Thanks to the clip, this small LED clip-on lamp can be used on