McToker's 1st Grow with CFL

[Shovelhandle]

you know, a little box fan can cool a pretty good size hps. I used that for 400w in a meter² area. The ambient was generally 65-70ºF. At the canopy the temp would be 80º-85º. Just an observation. good luck with the CFLs though. They can do the trick too. You know the math now.