Description: _x000D_ This is a simple and easy-to-use DC motor speed controller of elegant appearance and stable performance. It is made with high quality circuit board which ensures a longer service life. The input voltage can be DC 10V to 50V. This speed controller with high power allows setting direction of rotation. _x000D_ _x000D_ _x000D_ Features: _x000D_ Speed controller is made with high quality circuit board which ensures a longer service life._x000D_ _x000D_ This simple and easy-to-use DC motor speed controller has an elegant appearance and stable performance. _x000D_ Well design case can protect the controller board from damage as well as dissipate heat. _x000D_ There are two build-in 80A large current relay in this motor speed controller which ensures a better regulation. _x000D_ This motor speed controller would allow setting direction of rotation that accomplishes reversing the motor's direction. _x000D_ _x000D_ _x000D_ Specifications: _x000D_ Input Voltage: DC10V to 50V _x000D_ Output Voltage: Linear with load_x000D_ Maximum Current: 40A_x000D_ Rated Current: 30A_x000D_ Frequency: 16KHz_x000D_ Speed Range: 0% to 100%_x000D_ Forward & Reverse: Support _x000D_ Regulation Method: Potentiometer with switch _x000D_ Regulation Type: Regulating Current_x000D_ Size: 110 x 90 x 78 x 38mm / 4.33 x 3.54 x 3.07 x 1.50" _x000D_ Fitment: Suitable for DC brushed motors within 12V 250W, 24V 350W, 48V 500W_x000D_ _x000D_ _x000D_ Package Includes: _x000D_ 1 x Speed Controller _x000D_ _x000D_ _x000D_ Note:_x000D_ _x000D_ 1. This product is only used for speed regulation of DC brushed motors;_x000D_ 2. This product cannot be used as a voltage regulator or regulator;_x000D_ 3. This product cannot be powered by 48V batteries or accumulators;_x000D_ Please confirm your needs before ordering.