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I am trying to install this miniature computer fan in a heated incubator that operates at 50 Celsuis 24/7 in order to encourage air flow throughout the box.
Small fans like this run on 12 DCV power, but because it will be running constantly, a battery wont do -- I need constant power, forever.
I understand that I could use a step-down transformer to convert 120 ACV to 12 DCV, but I'm not sure about how to match the specifications of the transformer with the specs of the fan. This fan says it's "rated current" is 0.06A.
Given this info, I'm not really sure how to shop for a transformer that will work and is safe. Do I have to perfectly match power supply to the fan, or just make sure that it's powerful enough? So if I bought a 144 Wt transformer, does that mean there will be 12 Amps (or more like 1 Amp?), and is it OK to wire this to a fan with rated current = 0.06 Amps?
Can I power two or more fans with this same transformer? I would like to wire these in parallel, so that I can unplug one or the other. Would that work, or do I have to wire them in series?