Aqueminianswered grow question 3 years ago My lights never go below 100%
I started my plants under 2 TS1000 at 100% 32inches above them in a 2ftx2ftx4ft. I let them grow into the light and then raise the light and keep it at 20 inches from the top of the canopy.
That's running LED only.
Now I run LED and CMH together in a 4x4x6.5 and keep the lights at the top as high as they can go at 100%. I also do a lot of training and take cuttings for clones.
Also you should know I don't mind paying for the wasted electricity. I know I'm most likely providing to much light for a 4x4x6.5 with 800watts of mixed lighting. But the results will show.