Wide Voltage Compatibility - This motor speed controller is designed for 12-60V DC brush motors, making it versatile for various applications requiring precise speed regulation. For PWM Speed Control with High Frequency - Features pulse-width modulation ( for PWM) for smooth speed adjustment at a high frequency of 15KHz, stable and efficient motor performance. High-Capacity & Reliable Design - Rated for 20A current with lasting electronic components, providing long-lasting operation and resistance to wear in industrial environments. Compact & Accurate Engineered - Its compact size, wide speed range, and high accurate for applications in packaging, printing, food processing, electronics, and more. Name:DC brush motor speed controller Size:60x100x90mm Speed regulation mode:pulse width Pulse width frequency:15KHz Input voltage:DC12-60V Modulation output:0-input voltage Rated current:20A Output current:Less than 10A Maximum current:20A Continuous current:10A Speed adjustment range:0%- Quiet current:0.01A(standby state) Speed adjustment:potentiometer Model:B:M6020(no forward and reverse) Colour:Black Material:Metal Package Contents: 1 * DC brush motor speed controller Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.