Grow set up

I will be moving shortly and will be putting together a new grow closet. Closet size is about 5Lx2Wx7h. I plan for this to be my flower cab, housing up to 6 plants. Would I be able to hang 3 vertical 400 watt mh in there as well as a fan, dehumidifier, ac unit, and co2 injection system without flipping the circut.

I meant 2 400 watt mh and 1 4

I meant 2 400 watt mh and a 400 watt hps

all that might be tough to throw in there. also why use mh?