Exactly right, good answer.Get a 12Volts DC transformer.
Cut out the dc adaptor on the DC transformer, now collect the black wire with the black wire and the red wire with the black & white wire together.
Even if you collect the wrong wire together, it still will work, depend what DC fan you got, it may just spin in counter direction.
Well any 12v adapter. I wouldn't suggest a psu because of added heat.or get a phone charger that has 12v dc on the charger and splice into that hook into outlet worked for me for 2 years
Get a 12Volts DC transformer.
Cut out the dc adaptor on the DC transformer, now collect the black wire with the black wire and the red wire with the black & white wire together.
Even if you collect the wrong wire together, it still will work, depend what DC fan you got, it may just spin in counter direction.