greetings Stuck211,
I recently built a bloom room, 3 rail 18 hole aeroponics system. a 2 rail Veg room, 24 hole.
it seems to me that keeping your lights close, keeps the internodal lengths shorter. I have Veg a 400 wt on a light rail, sealed hood & vented with 6" Centrifical fan.
tighter plants...