The first thing you need to do is to figure out the area that you are going to light, then figure out your ventilation requirements from there. You want at least 50 watts per square foot; so 4 x 600 watts = 2,400 watts, divided by 50w/sq.ft. = 48 sq. ft. You can increase this area slightly with light movers, but not a whole lot. You need to look at the size of the area you want to light, then figure out what lights and reflectors will best serve the footprint that you want to light.

Just for the hell of it, let's say your bedroom (or the area within the bedroom that you want to light - the footprint) is 10' x 12'. A 1,000 watt lamp in a rectangular reflector will light a 4' x '5 area, so you would need two rows of three 1k fixtures to light that area. (If your room is, say, 10' x 14' or 12' x 12', you could increase your light coverage to take in the entire area by using light movers, so keep that in consideration when you are figuring out the ideal lighting.) Three 1k air cooled fixtures could be vented with a single 6" fan; ergo two fans per room. These fans could also provide your fresh air intake. These exhaust systems will be moving a lot of heat, so you want to exhaust them outside if at all possible. If you put carbon filters on the fan intakes, that would probably be sufficient for odor control also. If you have a lot of twist, turns and long runs in your exhaust lines, you might have to increase the fan size, but that's a design thing that has to be determined when you know what your duct runs will be.

...just a little food for thought.

Good luck with your project! :thumbsup:

PC :smokin: