Originally Posted by Brewski1975
Not to hijack the thread but I'm in the process of doing this myself and found a power supply "an old cell phone charger" that has the same wattage rating as the fan. I did a quick check to see if it would work and the fan fired right up when plugged in. I'm a complete novice at wiring anything so just curious if this will be ok for the long haul....
Same WATTAGE or same VOLTAGE? They are distinctly different things.
If the output voltage of your power supply matches the input voltage of your fan, this will work great as long as the rated wattage (or "power capacity") of the supply exceeds the power requirement of the fan - which is highly likely.
If the supply wattage rating matches with the fan but the voltages are different, it gets a little more complex... If the supply voltage is higher than the fan voltage, you might end up burning up your fan prematurely; if supply voltage is lower, your fan will simply run at a slower speed and move less air.
Assuming that you mean the voltages match (likely at 12VDC) and the power supply wattage is sufficient to drive the fan, this should work great. Just be sure that your connections are secure (think solder or at least wire nuts) and you should get great performance this way.