dude that would be sick! Thats like 190,000 lumens!! In a HydroHut lol!! I was thinking of two 400 in here but decided just to go with one 600 for now since it's nearly twice the lumens as a 400 anyway.

You know this is all mostly your fault, right Dusto? I was just gonna grow in a closet with CFL's and I would have been perfectly happy....then I saw your thread last year with your HydroHut. Now, $$$ later I'm still not done! Damn you!! Oh, but wait - I haven't had to buy herb since then either....:jointsmile:

I just saw a water cooled cooltube on ebay, claims to take 93% of the heat from a 1000w bulb. Doesn't need any special venting or fans, just a water pump. From here in town too...very interesting. $375 though, ouch!