What is EC technology?
EC stands for Electronically Commutated and it combines AC and DC voltages, bringing the best of both technologies
The motor runs on a DC voltage, but with a normal AC supply.
DC motors already have low power consumption but if used in an AC application
The power needed converting AC to DC, using a bulky, inefficient transformer.
The EC motor incorporates voltage transformation within the motor.
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.

Specification
Rated Voltage: 90-270V
Power: 6.0 Watt
Speed: 2800 ±10%RPM
Air Flow: 116.6±10%CFM
Noise: 41±10%dBA
Cable Length: 300mm (11.8 inchs)
Weight: 380g/pcs

Package include:
1 Piece fan include fan grill and mounting screws & nuts
2* leadwires（about 38 inches).
1* Power Plug
【APPLICATIONS】5 inch EC fan can be used as a dryer fan for a wetsuit/boot/glove dryer; or as a replace fans for 220 volt welder; Great for ice makers, AV cabinets, pond air pump, air hockey table, CMH grow light ballasts, refrigerator compressor cooling or ventilation; circulate air in Basement window and exhaust projects
【Easy to Install】you just need connect 2 wires easily to use this EC fan from 110 to 240 volts; EC fan motors maintain a lower temperature(-25°C to 70°C) More reliable operation and a longer service life, PBT plastic fan blades and frame, Lightweight
【Low Energy Consumption】EC fan 120mm features brushless EC Motor; 80% Power Consumption Reduction compared with AC fans and shade pole motors, more energy-efficient; this ec cooling fan delivers 116CFM airflow rate using just 4.5 Watts at max speed
【Large Air Volume】the miniaturization of EC motor design increased the air area, and can get 1.5-3 times air volume compare to the same AC fan; The focused-flow design allows the fans deliver air across longer distances
【Compact & Space-saving Design】120x120x38mm (4.7x4.7x1.5in.) | 80 to 240V AC | Bearings: Dual Ball | Airflow: 116 CFM | Noise: 41.6 dBA | Speed: 2800 RPM | Power: 4.5W | 1-year Warranty