Dimmable ring light featuring 3 color lighting modes: warm light 3000k, cool white 4500k, and day light 6000kUsb powered works with most devices that support usb port, like laptop, pc, power bank, usb charger, ac adapter, and etcThere are four buttons on cords to power on/off, switch the lighting mode, and adjust brightness levels, it is easy to find your preferred options in secondsColor: WhiteModel Number: Pstore572