UMLIFE 2PACK EC Axial Fan 80mm x 25mm AC 110V 115V 120V 220V 240V High Speed Dual Ball Bearing for Desktop

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. Features： Size: 80 x 80 x 25 mm ( 3.14 x 3.14 x 1 in. ) Voltage:90-270V Bearing:Dual Ball Watt: 6W Rotation:2800 ±10%RPM Air Flow:45CFM Noise: 35±10%dBA Package include: 2 Piece fan include fan grill and mounting screws & nuts; 4* leadwires（about 38 inches); 2* Power Plug