in my room m8 it tipped th scales from a borderline 28.c to a too hot 31.c but if u gt a cool tubed 1 which aint much more expensive then i reckon u be ok, i went and bought cfls and they jus as hot , so go wit cool tube m8
You are in luck. I just happened to have swapped my 400 HPS for a 600 HPS an hour ago. 400 HPS = 82 deg F. 600 HPS = 88 deg F.
This is with all conditions staying the same, but the light moved away 6 more inches.
It's a small closet and the reflector is air cooled.