100% brand new and high quality Features: The digital display 0-100 percentage table is accurate. Point move start / stop switch. Slow start time setting function 1: 000 - 100 Slow start to 100% Speed time adjustable between 0-10 seconds Default is 1 second. Slow stop time setting function 2: 000 - 100 Slow stop time is adjustable between 0-10 seconds Default is 1 second. 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. 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%. 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%. Note: The input voltage must be equal to the rated voltage of the motor. Specification: Input voltage:DC 6-60V Output voltage: Linear Output current: 0-30A Continuous current: 20A Speed regulation type: Regulating current Speed regulating mode: Potentiometer Speed range: 0 - 100% Control frequency: 21KHZ Type of wiring: Palisade terminal Dimensions: 3.2x6x9.5cm/1.26x2.36x3.74inch Quantity: 1 Pc Note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: 1 x Speed Controller (without retail package)