Feature: 1. The controller is equipped with a forward/reverse rotation switch. 2. The controller is control the speed with a potentiometer with switch. 3. Easy installation and convenient usages,simple operation,you can handle it easily. 4. The controller can work in 9V,12V,24V,36V,48V,60V power supply. 5. Professional and practical design with beautiful appearance. Specification: Item Type:Motor Controller Input Voltage:DC9~60V Output Voltage:Linearity under Load Maximum Current:10A Continuous Current:5A Function:Forward/Reverse/Stop Speed Adjustment Range:0~100% Control Frequency:15Khz Speed Adjustment Mode:Potentiometer Speed Adjustment Pattern:Current Adjustment Motor Supported:DC Brush Motor Wiring Type:Electric Wire Size:90 x 52 x 36mm / 3.54 x 2.05 x 1.42in Installation Size:Central Length:104mm / 4.09in Weight:138g/4..87oz. Package List: 1 x Controller Note: 1. The input voltage should be equal to the rated voltage of the motor. It is not possible to input 220V household electricity. 2. The input must distinguish between positive and negative polarity. 3. The motor can be connected without distinguishing positive and negative, when the running direction is inconsistent with the expected, you can change the direction by adjusting the motor wire sequence.