hey guys heres my new grow room, wayy bigger than my old one. its 4ft 2inches tall x 3ft wide x 15 inches deep

i have two 4 inch tubes running in and out. and a squirrel cage fan blowing air out.

i was using a 70w hps for a while but i don't have it anymore so i need to buy one.

i am either going to get the 250w or 400w from high tech garden supply

http://www.htgsupply.com/growlights....=155&typeID=55

but i can't decide if the 400 will be overkill.
what do you guys think?

btw all the plants in there are female, the two ladys that are almost ready are 3 months 4 days old. i can't decide when to harvest, maybe a week or two? i've just started flushing

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go with 250 for now just to see how it goes heat wise

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250w will do great but you just built a new bigger grow room how long till you build an even bigger one 400w might be the way to go unless you are happy with the size you are at

also is that the best price you found?

Hey bud I've got about the same size grow room as you do, Check out my journal! Go with the 400!

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Your going to probably have problems keeping temps down with the HID in such a small space. with 4ft of room allow 6in. or so for bulb and reflector, then the plant tops need to be atleast 12inches away from light. if you have 1 or 2 gallon pots 6 in tall your only giving yourself about 2 foot or less of grow room. looks like good results with those fluros. keep it simple

exactly, thats why i want to go with the 400. but i am worried about heat.

yes have you found anything cheaper? i want to buy one light now, and not have to go buying another in a few months cuz i need more light

400 watt is probably going to be too much for that area. However when you buy the HPS you also need the ballast and if you go upto the 400 you'll probably have to rebuy everything. It's a toss up, get the 400 and worry about venting. Or get the 250 and if ever needing to upgrade paying the $$ for it...

i'm leaning towards the 400 because i probably wont have the money to upgrade in the future

looks good! yours is about the same size but your using 6" ducting and i have 4"
also you have room outside your grow room for fans, mine is a little more enclosed.

From what I've read you should be able to vent out that 400 watt, but it'll just be something you'll always have to keep your eye on. It's a shame you've only got 4 feet of height though. Easily a foot for the container/pots, a foot for light room/hood. Then you've only got room for a 2 ft plant. CFL's aren't that bad, and in a small area you can put them almost on top of the plants so that's probably the easiest/best for what I could see for pics. Maybe stick with the CFL until you've got a little bigger space?