everything sounds good bro, but since your
going to be growing in a closet you'll need
air replacment.
So not only will you need a fan, you'll need
a blower (squirell cage fan) to replace the
stale air with fresh air.
Just like a human being, marijuana needs fresh
air it's entire life. The fan you putting in now
will just move the air around in the closet
nothing else, good luck.