1.Table lamps have built-in lithium battery，when the battery is dead end of the USB cable to the DC5V interface the lamp， and the USB interface on the other end of the USB cable to the computer for charging， charging when the red light， green light when the full power.2.The switch pattern lightly touch the base of the desk lamp cover can be opened or closed lamp， long press adjustable lamp brightness3.Lamp holder capable of adjusting direction Future:1.24 LEDs， ultra bright.2.Power:3W3.Lithium battery capacity:600MHA4.Powered by 3 x AA batteries.5.Angle-Adjustable lamp-head6.Soft and warm white light.7.50000H Extremely long service life.8.Size: 290×265×130mm9.With ON/OFF switch.10.Low power comsumption11.Lightweight， compact， space-saving， easy to carry and handle.12.An ideal emergency lamp.13.Protable perfect for travelling， hiking， camping， etc.Note:1.Do not over adjust the active joints products to avoid damage.2.Do not place the product in a hot or humid place3.Do not place the product on a tilt or unstable desktop， and prevent it from slipping damage. Package include:1* Desk lamp1* USB cable