Many YouTubers use ring lights to capture more professional videos. Take the Elgato Ring Light for instance: an app controlled light with 2500 lumen output and adjustable temperature from 2900-7000k. You can also make changes using the on-board buttons on the light.
This ring light has OSRAM LEDs and emits soft, even glow thanks to two diffusion layers. It measures 17-inch in diameter and has a ball mount that lets you angle your camera independent of the light.