Features: 100% brand new and high quality This product is mainly used for controlling the DC motor Speed It is made of high quality material, with long serving life Digital display Panel design, easy for reading and operating DC Motor Controller can set the time of DC Motor Slow Start and Stop, easy to operate Specifications: Input voltage: DC6-60V Output voltage: linear under load Output current: 0-30A Continuous current: within 20A Speed control mode: jog + - Speed regulation range: 0-100% Control frequency: 21KHZ Type of connection: Barrier terminal Support motor: brush motor Significant speed: 0-100% Size: 10 x 6cm / 3.94 x 2.36in Weight: 100g Detail: 1.Slow start time setting Function 1: 000 - 100 Slow start to 100% Speed time adjustable between 0-10 seconds Default is 1 second. 2.Slow stop time setting Function 2: 000 - 100 Slow stop time is adjustable between 0-10 seconds Default is 1 second. 3. Speed lower limit setting function 3: 000 - 080 The minimum speed is between 0-80% adjustable and less than the maximum speed setting The default is 0. 4. Speed upper limit setting function 4: 000 - 100 The maximum speed is adjustable between 0-100% and greater than the minimum speed setting The default is 100%. 5.Acceleration and deceleration value setting Function 5: 001 002 005 010 015 020 025 Each time you press the plus/minus key, the speed changes correspondingly by 1%, 2%, 5%, 10%, 15%, 20%, 25%. Package included: 1 x Motor Controller Note: 1.The input voltage must differentiate "+" ,"-", can't input 220V voltage 2.The input voltage should be equal to the rated voltage of the motor within 6-60V