DC Motor Speed Control PWM 10V TO 50V - 40A 2000W MAX

DC Motor Speed Control PWM HHO RC Controller 12V 24V 48V 40A 2000W MAX PWM Controller Module with Switch Description Power requirement:10-50VDC Rated current: 40A（Maximum output current）Frequency : 12000HZ It is fit all kinds of general-purpose and have a DC motor speed with brush. All kinds