Features: Cycle Charge LED Lighting Touch Sensor Switch 3-Level Adjustable Brightness 360 degree free twisted tube,can be bent to direct light just where you want it Environment Friendly Energy Saving Power from USB Port Directly Single Touch: 12 hours Double Touches: 10 hours Three Touches: 8 hours Touch Sensor Switch is applied to this lamp, and it has 3-levels different brightness. Adjustable brightness can meet various demands of different environments. Maintenance: Please charge this lamp over 8 hours before initial use. It takes 12 hours to reach a full charge. If this lamp is not used for a long time,please charger it at least once in two months (over 8 hours)to protect the battery from aging. Specifications: Input:DC 5V/500MA Power:<=1.6W Brightness:650LX Base size:113 x 100 x 28mm Height:30 cm Charge cable length:95 cm Color:White,Yellow,Green,Purple Weight:182 g Package weight:202 g Package include: 1 x LED Desk Lamp 1 x USB Cable