1. There are 3 light colors: Press the power button to control the light color and brightness, short press to change the light color, long press to decrease the brightness. 2. 2000mAh battery lamp working time: The wireless desk lamp has a built - in 2000mAh battery, and the long desk lamp can work for about 8 - 10 hours when fully charged for about 3.5 hours. You can charge the lamp via USB port. 3. EASY TO USE: Just use the touch button to easily control the light. Short press to change the light color and turn on/off, long press to decrease the brightness. 4. Lightweight and portable: The rechargeable desk lamp is very lightweight, the wireless design LED desk lamp can be used anywhere, such as living room, bedroom, office, restaurant, bar, cafe, hotel room, dormitory, outdoor camping, etc. 5. Atmosphere table lamp: beautiful appearance, various light colors and brightness can meet many needs. It is suitable for use in bars, cafes, restaurants and hotels. 6. With the concept of "customer first", we provide 24/7 customer service. No matter where you are and what problems you encounter, we will solve them for you as soon as possible, so that you can shop without worries.