Medic Grow Mini-Sun 2 320W is a good light. I have to be careful about using too much intensity. I backed down from 80% to 60% again. I would get a dimmer if I could do things over again.
I used it for vegging. As the plant was just looking for a space with extended light hours. I have used the light for some time. It works really well. I have had great results for only 320 watts.
Has been a great quality light. I have used it for a good handful of runs in my autoflower room. It runs 20/4 every day at full power. I have had no issues with the light.
Only ran it on 40% this grow but she is an absolute beast. She stays very cool. 2nd grow with her and none of the leds have gone out so high quality soldering.