This is (4) over a 3x3 at roughly the watts you state but I built this for flower:
My suggestion as
@robincnn put it to me, you can't dim up past your max, but if you have too much light you can dim it down.
In all honesty, if it's just for veg I would save some $$ and go with something from citizen or Vero.............. I'm going to run (4) Citi's for my veg tent as well but not that many watts each would just be a waste really IMO. If you really want to push them hard then maybe go with a couple of Citi 1825's @100W each? Like I said for veg I just don't see the point.
Cheers!