Howard Stern
Well-Known Member
I just ordered another 6" 400 CFM fan. I will just run one fan per light and call it a day. I pick up the fans on ebay for under $100 shipped so I can't complain. Later I will order some more just as backups! The fans at the hydro store are way more expensive and if one fails I would like to have a backup ready to go. Later I would also like to get a couple of balast backups too!ya i use a 6in 450 for my 1000 single and seems to do the job might need a 8in they do about 750cfm almost double!