General description DC10-55V 40A Motor Speed Controller features a digital display and adjustable PWM for forward and reverse rotation. It includes a soft start and stop function, providing dual protection for both the motor and power supply. The controller allows for a lower speed limit, reducing the minimum starting space, and offers multiple starting modes for versatile applications. Technical specifications Input voltage: DC 10-55V Maximum current: 40A Control frequency: 15 kHz Speed regulation method: button and button Speed adjustment increment values: 9 Display method: 4-digit digital tube Installation method: embedded Wiring type: fence type terminal Set number of functions: 7 Color: Black Material: Plastic Other information Package Contents: 1 x DC10-55V 40A Motor Controller Note: Light reflection and different displays may cause the color of the item to differ slightly from the real thing. The measurement allowed error is +/- 1-3 cm.