The DC motor speed controller 1203BS controls the speed of a DC motor via a pulse-width modulation (PWM).

Input power supply range: 6-28V DC.

It controls the direction and stopping of the DC motor through a switch. By pressing the green button, the motor changes direction and stops when the button is released. By pressing the red button, the motor rotates clockwise and stops when the button is released.

• Input power supply voltage range: 12V-80VDC.
• PWM frequency: 21kHz.
• Duty cycle range: 0%-100%.
• Suitable current range: 30A.
• Potentiometer with switch function.
• The 3-digit LED display range is "000"-"100". (For example, if it displays "055", it means that the PWM duty cycle is 55%.)
• Power supply 6V-24V DC.
• Includes button switches.
• Maximum continuous output current: 3A.
• Product dimensions: 57 * 37 * 21mm.