Features 1、DC motor speed regulator controls the speed of the DC motor by adjusting pulse width modulation (PWM) 2、Suitable for DC motors (or DC loads) up to 20A 3、The adjustable speed range is 0%-100% 4、The potentiometer has a variable speed rotation function and a button rotation function. 5、The product has a metal case and connection label for easy installation and use Specification Item Type: Motor Speed Controller Input Voltage: DC9-60V Output Current: 0-20A Continuous Power: 1200W Speed Control Type: Flowing Adjustment Speed Control Mode: Potentiometer (Linear) Speed Range: 0-100% Control Frequency: 25KHZ Module Size: Approx. 92 x 52 x 36mm / 3.6 x 2 x 1.4in Weight: Approx. 130g / 4.6oz Center Distance: Approx. 104mm / 4.1in Potentiometer Opening: 7mm Package List 1 x Motor Speed Controller