Rechargeable table lamp for indoor use with three choices of color temperature (warm white, cool white and daylight). Easily adjusted with a light push of the silver button on the lamp base. The lamp has a dimmer function that is adjusted by holding a finger on the button to the desired brightness. Burning time between 3-50 hours depending on the choice of brightness, fully charging the lamp takes about 3 hours. Battery 18650 Li-Ion, 3.7V 2000 mAh, not replaceable. Charging cable with USB C socket included. For indoor use. Height 21.50cm