Take a 12V DC wall wart adapter, probably around 200mA-300mA, lop the end off, then wire it to the fan. The fan will only turn when it's wired correctly, so you have a 50% chance of getting right on the first try.
CR Member
Take a 12V DC wall wart adapter, probably around 200mA-300mA, lop the end off, then wire it to the fan. The fan will only turn when it's wired correctly, so you have a 50% chance of getting right on the first try.
120G Reef and 40B reef at work, 120G tank dry and dirty in the garage.
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