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Originally Posted by CREEPIN  how does the power supply know how fast to spin the fan?? i know it has a speed controller of some sort...? |
It doesn't...it's either on or off. I do believe however that you can get transformers that allow you to adjust the output which in turn would adjust the speed of the fan. If you purchased a temperature controller you could hook it up to the fans so they would turn on/off at desired temp.
God bless,
Disciple