Description
Additional quantities may be available. Please reach out to the seller for more information. Vary the speed of DC motors the very best way with this kit. Gear boxes can be costly and series resistors may cause stalling. This circuit delivers the voltage to the motor with pulses and the speed is controlled via pulse width modulation (PWM). The speed control is a potentiometer for DC motors up to 100 volts at a maximum of five amps.