Feature: 1. Powerful, can be used as a portable pen holder, mobile phone holder, mobile phone charging treasure, reading lamp, etc., one thing is multi‑purpose, easy to use. 2. Three levels of touch dimming, no flicker, brightness controllable, suitable for different environments, one level is suitable for bedside, the second level is suitable for entertainment and leisure , and the third level is suitable for work and reading. 3. Long battery life, 4000 МАН lithium battery, powerful batteries, continuously release surging power, charging time only 3 hours, use time 8‑48 hours. 4. The USB charging design can be used for both charging and plugging. It can be used not only as a desk lamp, but also as a power bank to charge a mobile phone. When it is full, the indicator light is green, and the indicator light is on when charging. 5. Wide range of use, no wiring, high‑capacity battery, continuous output, easy to use, suitable for study, bedroom, bedside, office, travel, camping and other places. Specification: Item Type: Desk Lamp Material: ABS+PP Weight: Approx. 343g/12.1oz Product Overall Size: Approx. 10.5 x 44cm/4.1 x 17.3in Lamp Head Size: Approx. 8.5 x 10cm/3.4 x 3.9in Battery: 1 x 22650 4000MAH Lithium Battery Charging Time: 3 Hours Use Time: 8-48 Hours Gear Position: 3 Gears Voltage: 5V . Package List: 1 x Lamp1 x USB Cable1 x Instruction Note: 1. Please allow 0‑2 cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.