600's tend to be the most energy efficient of the hps models and the heat is way less than the 1000's. Could probably grow 12 plants efficiently with that size area depending on how big your going to let them grow. If you've got indica's about 3 feet tall works out good.
The best way for venting would be to vent in the attic and either hook into a carbon scrubber up there or put a UV ozone generator up there.
killerweed420 Reviewed by killerweed420 on . New member with a few questions for the GuRu's I have a * 9x7x10 * closet that use to be a small room in my master bedroom. There are a few questions I would really like some novice/expert advice on! 1. What would be my best lighting option ? In the size of room I have would a 600w HPS light be efficient? How many plants could I grow with this amount and space? 2. What is the best way to vent a room ? My grow room will be in the front of my house. I do have an attic to vent into or would I be better off with just a product like Rating: 5