Wide Voltage PWM DC Brush Motor Speed Controller Support MACH3 Control Speed Controlled power: 12V120W24V240W36V360W48V480W60V600W Rated current: 10 A.( overload short circuit protection current:12A) Working voltage: DC12V-DC60V(Limit of 65 v) The default control potentiometer: 5K-100K, default value 10K Support MACH3 Control Speed