PWM DC motor speed controller with switch function in black colour come with three red blue and black attached wire .
Package Includes 2pcs pwm motor
Easy to adjust and control speed of DC motor, simple wiring and convenient to use, a great replacement for broken one
Widely used for adjust motor speed, automobile fan heater control, defroster, fans speed regulation, etc
Red wire connected to the positive pole of power supply and motor, blue wire connected to the negative pole of motor, black wire connected to the negative pole of power supply
