... of EC Fan brushless dc motor controller driver Supply Voltage: 115V, 230V, 380VACMax power: 500WSpeed control: 100% controllable by 0 ... according to customer demands, such as Supply voltage range, No noise, hall-free, power,etc.Applications: External rotor motor, ... customer demands, such as Supply voltage range, No noise, hall-free, power,etc. power,etc. 115V single phase BLDC fan motor driver or ...