So watercooled nailed it guys. And mad props to watercooled for drawing up the diagram. I added to your rep man! So i have two options here I can run it like the second snake like diagram. Make the room five feet wide instead of three and a half feet wide to make the ventilation fit a tad easier. And then beef up the exuast to compensate for the two hoods and a new carbon can filter. Or I can go budget and just get the Agrotech Magnum Reflector which si 31.25 inches by 29 inches hang the lights as intended and run the exhaust as intended as well by running the air across the center of the bulb instead of the length of the bulb by building the housing myself then welding it for a perfect airtight seal. Then I need to get some glass from hardware store cut to fit (I assume any window glass would work fine please let me know if i am wrong on this) I would add it and tape it with some foil tape. Not sure but i kinda like the idea of making the room larger as this will equal more nugz of course:sun.
Give us all the info in your room. # of fan(s) how many lights, wattage and roof height as a minimum. Growing style and medium would help, for example: will you use trays at 4' height? How is the room going to be layed out? Do you need walking space? Is there a single entrance to the room? Do you need to take up floor space for equipment?
^ With that info you can plan a layout that will maximize your space.
P.S. Don't listen to the ladies... they try to make you feel better by saying it's not the size of the boat, but rather the motion of the ocean... BULLSHIT... I don't care who you are, it takes a LONG ass time to get to England in a row boat... know what I mean?
Bigger IS better!
So what is the deal with the dual arc bulb? I am very curious. I would hate to be missing out on something that is useful to me.
Dual arc... both HPS and MH in a single bulb. Full sprectrum throughout the grow. You know how some add MH bulbs during flowering to dense up the flowers?
Ushio and Horilux both make some. I've seen others out there to... Here is a link
http://www.horticulturesource.com/u...6499/?osCsid=59206147863fa70b4f40e3465b780fc9