About EC Axial Fan:
1: EC stands for Electronically Commutated, and it combines AC and DC voltages bringing the best of both worlds.
2: The motor runs on a DC voltage, but with a normal AC supply. The motor incorporates voltage transformation within the motor.
3: The non-rotating part of the motor (stator) is extended to make room for an electronic PCB board which includes power transformation AC to DC, as well as the controls.
4: Brushless DC motor / fan driven by AC source input. The EC fan is more windy than the AC fan, more energy efficient, and can work in the 70V - 270V voltage range, such as work under on 110V, 115, 120V, 220V, 240V, the fan speed are the same. Features120 x 120 x 25 mm ( 4.72 x 4.72 x 1 in.
)Rated Voltage: 90V
to 270VAirflow: 88.2 10%CFM
Power: 3.0WS
peed: 2700 RPM
Package 2PCS 12025 fan