With the 3 T247's, I get blanket coverage front to back, side to side and top to bottom.
I am still turning the intensity up very slowly.
Right now I'm on 20% blue and 15% white with a lot of room to go much brighter if I want.
I do NOT have a disco ball effect at all.
I'm happy with the lights. I have growth, everything seems to be happy. No brown outs, no bleach outs.
Very nice color to the eye and nice to the corals.
I will post more pics later.