Opinions needed for pc case fan sizes

dark006

Member
This is my first pc grow so I'm wondering if anyone knows what is best for fans and ventilation. Right now, I have three 80mm fans, one 120mm fan, and one 12vDC 200mA DC adapter. From what I've been reading the 200mA rating is on the lower side of what I should be using. However, I did use this DC adapter with two 80mm fans hooked up to it with my first rubbermaid grow and had no problems. Here are the setups I'm thinking of for the PC grow...

Two 80mm fans for exhaust
One 80mm fan for intake
All three hooked up to that DC adapter

One 120mm fan for exhaust
One 80mm fan for intake
Both hooked up that DC adapter

Noise is somewhat of a concern and the 120mm fan is a bit louder than the 80mm fans. Plus if I could get away with that first setup it would save me the cost of the 120mm fan.

What do you think, will that first setup be sufficient for cooling four 26w bulbs?
 
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