For those confused, the seller recommended driver (https://www.amazon.com/gp/product/B074TBMC7N) definitely works, even with mains power on Power supply 48V. Although V=IR implies that 48V must exceed the nominal 4.2A at 0.9Ω impedance of this motor, the driver regulates the output, so such a driver can be used even if the driver's power supply is a has higher voltage than would be acceptable motor. Direct connection motor.