Look Out for that heat.you will burn the plants to there death.I use a 400 watt Mh&HPS the Mh Vegetative stage and switch to HPS in the 12 hours light cycleof flowering.The light reflector has a 6' intake of fresh air which is pulled into the refector across the bulb and out exhausted to the attic with
6" vortex inline fan at 449 cfms.So the heat of the light is cooled down awholelot.I do have a aircondistion vent in there too.The closet is 2'Wx8'Lx8'H
The temp is around 73*To79* and the Humidity runs between 45% to58%
most of the time its about 49%.I build a dark room vents in the door.One near the top and one near the bottom.At the bottom I have a 3"x3" axle fan pulling in air from the room into the grow closet.The light is about 16 To 18
inches from the plants at all times. Do this and you shouldnt have any trouble
with heat.

Let Me know how it does.:dance: :dance: