Features: 3 Levels Dimming & Night Light Mode: Easy to use, touching the switch, 3-level dimming, with the darkest light, medium light, and the brightest light. It meets your needs for lighting. You can use the night light when you rest. USB Charging: The darkest light source can work for 10 hours, the medium-light source can work for 6 hours and the brightest light source can work for 5 hours. Small&Clip Design&Flexible Gooseneck: Clip design can be clipped on the desk and book, the angle of light can be adjusted at will, the light beam can be accurately aligned where needed. Non-flicker Screen &eye protection LED lamp beads: Uniform and soft illumination, close to natural light, almost no ghosting, long-term use won't hurt the eyes. Warranty: If there are any problems, please contact our store in time. We will give you a satisfactory solution. Specifications: Item: Booklight Main material: PC and ABS Main color: Black Battery: 600mAh battery Working time: 5-10h Lamp beads: 7 pcs Power: 5W Color temperature: 5500K-6000K Output: DC 5V/1A How to use: Touching switch 3 levels dimming Product size: 30*4.3*2.8cm Product weight: 61g 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 Weight: 87g Package size: 11.6*7.1*5.3cm Package List: 1* Book light 1* USB charging cable 1* English manual