... control, tache output, etc.Specifications of EC Fan brushless dc motor controller driver Supply Voltage: 115V, 230V, 380VACMax power: 500WSpeed control ... signal, PFC.Function: Stepless speed control, CW or CCW rotation; start and stop; speed feedback, Fault alarm, etcCan be customized according ... range, No noise, hall-free, power,etc. power,etc. 115V single phase BLDC fan motor driver or controller