1)115/230V,50/60Hz,12mm diameter stator 2)electronic commutated motor for refrigerator,condensor,heater 3)UL,VDE in progress ... the top advantage in the market by early using EC Motor.2. performance parameters ModelVoltageVFrequencyHzSpeed RPMAmbient Temperature °CABEC12-230220/ ... certificates, high-tech enterprise, research& technology center... EC12 electronic permanent magnet condensor fan motor