The light is soft and eye protection, even if you work for a long time, whether it is work, study or reading, it will not make your eyes tired. 3 levels dimming and night light mode can meet your daily needs for lighting. Specifications: Item: Clip-on book light Main material: PC, ABS Main color: White Battery: 600 mAh battery Charging time: 3-4h Working time: 5-10h Lamp beads: 7 LEDs Power: 5W Color temperature: 5500K-6000K Output: DC 5V/1A How to use: Touching switch 3 levels dimming Size: 30*4.3*2.8cm Note: * There could be some deviations due to manual measurement or slight color difference owing to photographing condition. Thank you for your understanding. Package Information: Package size: 11.6*7.1*5.3cm Package weight: 87g Gift Box Package Packing List: 1* Clip-on book light 1* USB charging cable 1* English manual