FeaturesDC 1055V MAX 60A CW CCW Reversible Switch PWM Motor Speed ControllerPerfect replacement for the old or damaged oneSupports large current startLED display 0~100% speed percentage, easy to readBuilt in heat dissipating fan, great for fast heat dissipationDurable and practical to usSpecificationsInput voltageDC 10V~55VMaximum current60AContinuous current40ASpeed range0%~100%Control frequency15KHZSpeed regulationPotentiometer (100k/with switch function)Speed Regulation Type Regulating CurrentReversible SwitchCW/CCWDigital Positioning0100 (percentage of full speed)Support MotorDC brushWiring TypeScrew TerminalsWarm TipsThe digital display only shows 0100%, which is the percentage of the full speed of the motor, not ihe actual speed of the motorThe input voltage should be equal to the rated voltage of the motorPower supply input must be divided into positive and negativeSize15x9x6cm/92x54x18inchNotePlease allow 13mm error due to manual measurement.pls make sure you do not mind before you bid.Due to the difference between different monitors,the picture may not reflect the actual color of the item.Thank youPackage Includes1x PWM Motor Speed Controller