It has 3 brightness levels to suit your lighting needs. [Multipurpose] Doubles as a pen holder light. Save desktop space and make your desktop cleaner. Simple and elegant, suitable for different spaces such as office, bedroom, etc. elastic collar Completely flexible, adjustable to different heights and angles, it is the perfect combination for lighting and decoration. [Convenient] Built-in 1200mAh battery and USB charging cable. It depends on the brightness level you choose. (It is recommended that the desk lamp be fully charged before use. The charging time is 2-3 hours.) Material: ABS + PP + electronic components + metal Product color: green, blue, pink (optional) Product instruction for use: The first use needs to be charged for more than 3H. Press the power button and press again to set the light to three different brightness levels and turn off the light Product configuration: 1 desk lamp + 1 USB cable Lighting: 350Lux Color temperature: 11000-13000K Rated voltage: DC3. 7V Rated power: 3WBattery capacity: 1200mAhCharging time: about 3 hoursNumber of LED lights: 13pcsUse time after full charge: about 15H for first-level brightness, about 4H for third-level brightness (recommended The lamp is fully charged before use. The charging time is 2-3 hours.)Size 135*98*415mm Weight 0.25kg