400watt 4x4 grow tent DWC grow

Yota said:

no, intake fans should be coming into your garden. You don't really have to have one (do some reading about that). You will need a exit exhaust fan getting rid of the air from your room. You could attach the carbon filter to some ducting to your reflector, and from your reflector out of the garden, yes that would work.

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yea i read up since i posted that and yea i decided to go with just want you said lol thanks for the in4

converseking said:

how well do u think it'll go if i skip he 600 watt hps and jus go for a 1000 with 16 plants? i hear 1000watts is jus right for a 4x4 space. and what do you think about areoponice hydro systems? i was thinking of gettin (2) 8 plants systems instead of the DWC's and puttin them in a 4x4 grow tent as well( they would take up a 3x4 space side by side) im jus not sure if if they'd be worth the extra money but some one told me they where the best and hardest to use of all hydo's. any input on any of this would be a great help.

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400 is more than adequate for such a small space, keep in mind the sides are reflective. I have a 600 and trust me, I worry about heat even with a 470 CFM exhaust. a 1000 watter in a 4x4x8 might start frying shit. I dont know... check out my grow:

If you have all the correct ventilation and an air cooled hood, I would say get a 1000 watt light. I have a 420cfm fan for my light and a 465cfm fan for exhaust. My temps stay about 4-6 degrees above ambient temps.
As long as you can keep it cool, you will be much better off with the 1000watt light. I used to use a 400watt light in a 2'x2' area for like 2 yrs without any problems. ANd that was with a cheap batwing reflector. I just built a 4'x4' cab, and I use a 600watt light in there. I am planning on adding another 600watt in there in the near future. So I would have 1200watts in the same size space you are using.
If you can cool the well, you shouldn't have a problem with heat. The only place the heat comes from is the lights. If they are kept cool enough, the rest of the cab will stay cool as well. Or you can always add an A/C unit to your setup as well.