The DIY cool tube uses some brass hardware to keep socket in the center of the bake around. I do not remember what the actual purpose of the brass was but I did see it at walmart in the clothes hamper and clothes line section.
I am pretty sure the booster is not what your need. I have seen people use duct work near bulb with no hood, but this would not work as well as the hood. It is going to take money period.
thnkz..but remember this is a temp fix..for just THIS grow,Im only after a clone mother plant from this seed run..and ofcourse a few ounces of homegrown ak48 wouldnt hurt
..then ima upgrade to a vortex fan,cooltube,dwc system,etc for my future grows....all i need is a temp fix for my cooling needs...just one 400 hps in a small closet with a couple plants in there,nothing too fancy,which is why i dont wanna spend a couple hundred just yet..
i know the booster fans SUCK...but will one work to vent the hot air that comes off the hps bulb?Temps wont be as optimal,but as long as they grow properly,and dont die or stress too much due to the heat,im fine with that...so do you HONESTLY think that just having the ducting and a 6 in booster fan from htg supply be enough to keep temps MANAGEABLE?
remember,im broke right now...i spend quite a bit of change on 2 hps lights,the medium,a dwc kit,mylar,etc.....and i mssed the most important part,a cooling system...so now im in the market for the cheapest,yet efftive,solution...