Features A well-designed housing can protect the control board from damage and dissipate heat. This motor speed controller would allow rotation direction adjustment that causes the motor to reverse direction. The speed controller is made of a high-quality circuit board, which ensures a longer service life. Two 80A large current relay are built into this motor speed controller, which ensure better control. This simple and user-friendly DC motor speed controller has an elegant appearance and stable performance. Description: This is a simple and user-friendly speed controller for DC motors with elegant appearance and stable performance. It is made of a high-quality circuit board that ensures a longer service life. The input voltage can be DC 10V to 50V. This high power speed controller allows you to adjust the direction of rotation. Specifications: Input voltage: DC 10 V to 50 V. Output voltage: linear with load Maximum current: 60 A. Continuous current: 40 A. Speed range: 0% to 100%. Forward backward: support Control method: potentiometer with switch. Control type: control current Size: 110 x 90 x 78 x 36 mm/4.33 x 3.54 x 3.07 x 1.41 inches. Package includes: 1 x speed controller. Package List