thats wy i bot 600s to keep cooler easier.i use the hortilux bulbs which give out that extra 4000 lumens.
Hey dbo and raiderman, thanks again for all your input. Got my 1000 watt ballast, and set it up outside my tent, keepin' the tent cool (at peak outdoor temps of 84 yesterday, it only went up to 78 degrees inside the tent!).
So when I hook up the aircooled hood I got for the 1000 (should be in around 10 days or so) the temps are gonna be even better (and summer will be over!). My plan is to switch the 400 out with my 600 digi, and then use the 6" Can-fan I am winnin' on ebay which has 270 CFM and will cool both air cooled hoods, and only uses 72 watts. The other 6" fan/carbon filter will be turned down as much as possible, which will help with noise levels.
Pics-1st is Blue Venom (day 8 flower), 2nd is the White Russian lookin' washed under the 1000 watter (Monday will be day 1 foor her), 3rd is Blueberry Kush, and last is a bud shot of Lemon Skunk (BK and LS are day 8 flower also).
I bought 2 Super-Spreader air diffusors that spread 25% more light to the outer parts of your grow area, and also eliminates the HOT SPOT under your lights. I got the large and medium sizes, and they are goin' in with the other upgrades. Now I'm gonna smoke some Snow White in my glass pipe! So I puff, puff, pass to all of you. protopipe1