Does the fan use 3.3V - 12V AC or DC?

hank you for your question. This fan requires 12V DC input. The listed 110V/120V/220V refers to the input for the included speed controller, which then converts and supplies 12V DC to the fan.

Questions & Answers: PANO-MOUNTS 12V 92mmx38mm 90mm Moisture-Proof Small Computer Muffin Exhaust Vent Fan with 110V 120V 220V Speed Controller 3.3V-12V 1500-4500RPM Variable Speed

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PANO-MOUNTS 12V 92mmx38mm 90mm Moisture-Proof Small Computer Muffin Exhaust Vent Fan with 110V 120V 220V Speed Controller 3.3V-12V 1500-4500RPM Variable Speed

MOISTURE-PROOF: New trend of dc 12 volt moisture-proof muffin fan that designed for high humidity (80%) cooling vent project,verified test up to 4cm water for 4 hours.
DUAL BALL BEARING: 92mm fan 12v high cfm small electric fan with long lasting dual ball bearing provides up to 60000 hours over 6 years life.
VARIABLE SPEED CONTROLLER: With a 3.3v-12v speed controller small window fan can achieve different airflow (31.8-95.4CFM) and noise level(21-52.5dBA) according to demand.
100V-240V PLUG: Increases the maximum fan speed and enables the fan to be powered through an outlet,just plugging it into the outlet to start the fan.
SPECIFICATION: Size: 92x92x38mm;3.62x3.62x1.5inches | Dual Ball Bearing | Voltage: 3.3-12V | Current: 0.12-0.6Amp | Air Flow: 31.8-95.4CFM | Noise: 21-52.5dBA | Connector: DC 5.5x2.1mm Female.
DIY COOLING: High airflow 90mm vent fan with double-sided metal grills can be used to cool media cabinet,rv fridge and keep electronics running at their ideal

$24^.99 –