Built-in 5000mAh rechargeable battery, fully charged can be used for 8-25 hours (can also be used while charging).
3 Colour Stepless Dimming - Colour temperature: warm white light, warm light, white light, stepless dimming (5%-100%); range: 3000K-6000K; touch switch control, switch light mode by clicking, long press control Brightness of lights. 
Dimensions - ‎9.5 x 11 x 38 cm; 840 g
This led cordless table lamp charges with USB cable. 
With IP54 protection level tech and unique drainage shape, additional, there has a silicone sealing cover to protect USB-C charging port under the lampshade.