Feature:1. Different light colors can be adjusted by touching the button, including white light, warm light, and warm white light. Long press the button to adjust the brightness.2. It can be powered by the built in battery, and it can be used even when there is no power supply, which is very convenient.3. The 360 design and flexible gooseneck allow you to easily adjust the clamp light. The stable, durable and non slip clip can be clipped to things or placed on the table alone.4. It can be charged by USB, it can also be connected to a laptop or portable power supply for charging. Long service life, high luminous efficiency, good heat dissipation, and low luminous decay.5. The product is made of plastic material, small in size, compact in design, and very easy to carry. It can be folded and stowed for easy storage.Specification:Item Type: Desk LampMaterial: PlasticProduct Size: Approx. 41 x 12 x 12 cm / 16.1 x 4.7 x 4.7 inInput Voltage: 5VBattery: A 18650 lithium battery 1250 mAh (Battery Included)Weight: Approx. 283g / 10oz.Package List:1 x Lamp (Battery Included)1 x Manual1 x USB Cable