... control, tache output, etc.Specifications of EC Fan brushless dc motor controller driver Supply Voltage: 115V, 230V, 380VACMax power: 500WSpeed ... range, No noise, hall-free, power,etc.Applications: External rotor motor, centrifugal fan, centrifugal blower, axial fan in HVAC,Tele-communication ... range, No noise, hall-free, power,etc. power,etc. 115V single phase BLDC fan motor driver or controller