Check the listing for details. DC 12-60V 20A PWM Brush Motor Speed Controller Reversible Camper Fan Switch. Color: Black, Condition: New, Made in China. Listed at 15.00 USD. The DC 12-60V 20A PWM Brush Motor Speed Controller is a versatile and powerful device designed for controlling the speed of DC motors within a range of 0-100%. With a maximum amperage of 20 amps and a voltage range of DC 12-60V, this controller is suitable for various applications such as milling machines, RV trailer ceiling fans, and camper fans. Its reversible design allows for both forward and reverse operation, providing greater flexibility for controlling motor speed in different scenarios. The compact black color and high-quality construction make it a reliable choice for motor speed regulation in a wide range of industries.