The LED ring on BEACN Mic can be quite bright should you want to set it that way, but you may find that it's too bright when on camera. Whether you're using a webcam or a DSLR, you'll likely want to turn the overall brightness down quite a bit for things to show up nicely.
We find that a setting in the 8-20% brightness range tends to work well if your room is lit for broadcast (dimmer than a typical room).
If you have a brightly lit room, you may require a higher brightness setting on the LED's.
Ultimately, getting the best look is subjective, but starting low and working your way up is a good method of achieving a nice balance for your camera setup.