SickSadLittleWorld
Well-Known Member
I've got a 150w hps grow in a little cabinet about a week or two from harvest and I want to step things up a bit for the trainwreck that I just sprouted. I'm looking to turn the cabinet into a veg room and an appropriately sized tent into a flowering room but I am debating whether I want to put a 400w or 600w hps in it. Ultimately it will depend on my budget but I am wondering if a 4" 170 CFM centrifugal fan and carbon filter hooked to a diy cooltube setup would be adequate for a 600 watter? If this won't work, is it the restrictive 4" ducting and cooltube or is it the weak fan? Essentially, I just want to know if the fan and tube will be fine or if I need to go 6" all the way or just go 4" and use a 400 watter. +rep for some good help!