Yes, i read it. I use the same kind of fans. Mines are of 80CFM, too. And it isnt enough with my 220w floro setup, so try to imagine it with a 400w HPS.

What i was saying is that 12cm fans and more powerful or less noisy, take the hand you prefer.

But if you are going to use that fan, why do you ask? I offer you my experience about venting with PC fans, and all i said in my previous post still is valid. Take it or not, is your choice.
knna Reviewed by knna on . cooling a 30x 30 x 20 deep I saw where one guy is cooling their cabinet with 4 CPU fans I am working on the same idea. It will be super quiet and they were all free. I would like to know if I should also bring air in with one also. As for lights I will use 3 30watt clfs and for flowering a 150 hps or 400 hps. Also I would like to know if he is using a 110v converter to 12 dc. The cabinet will be used for two plants I will keep clones and a mother in another spot. Rating: 5