Quote Originally Posted by ThaRaven7
Now when you say I won't need as many lights if I hang them vertically, if I positioned these lights absolutely perfect, how many could I get away with? Right now I'm looking at 6-7 1000w (I assume that's as high as I can go) HID's, but I don't know whether it's gonna be MH or HPS. With seven lights, the ducting is gonna be crazy.
Run some searches. I can't answer your vertical light questions with any authority but there is plenty written about it. Use google to search these and other forums like this:

vertical HID "cool tube" or cooltube site:cannabis.com

Play with the search terms. Search other sites.

I'm going to say that hung vertically you could probably step down to 6 or 7 600w HIDs. The general rule is that you place the plants around the lights in a 2' radius so that's four feet / light. You will be growing bushes so figure 2' per plant as well.

Let us know what you learn!
bigsby Reviewed by bigsby on . Some Questions about my newest project. OK, so I'm looking at working with a grow room that measures 8ft x 14ft or 112 ft. sq. Hypothetically, with 32-36 girls in it. So, according to posts I've read, some people use a 50w per square foot ratio for HID lights, and some use a 62w per square foot ratio. By these two numbers that's 5600-6944w of HID lights. Does this sound reasonable? Accurate? Could I get away with less without greatly reducing yield? Moving on to airflow and odor control. The plan is to buy a large air purifier, Rating: 5