["Description:\r\nThis is a simple and easy-to-use for DC motor speed controller of small size, elegant appearance and stable performance. It is made with high quality circuit board which ensures a longer service life. The current can be adjusted from 0A to 30A which is quite convenient to set.\r\n\r\nFeatures:\r\nSpeed controller is made with high quality circuit board which ensures a longer service life.\r\nThis simple and easy-to-use for DC motor speed controller has an stable performance.\r\nThe output current of this motor speed controller can be adjusted from 0A to 30A, and it is simple to set.\r\nDesigned with a digital display that shows the rate in percent of actual speed to maximum speed.\r\nThis motor speed controller uses screw terminals for convenient and quick wiring.\r\nThe positive and negative pole of controller must be connected correctly, otherwise, the item might be burnt.\r\nThe input voltage of controller is better to be same as rated voltage of motor.\r\n\r\nSpecifications:\r\nInput Voltage: for DC 6V-60V\r\nOutput Voltage: Linear with load (voltage drop at motor 2 terminals )\r\nOutput Current: 0A-30A\r\nContinuous Current: <20A\r\nSpeed Range: 0% to (variable)\r\nRegulation Method: Potentiometer (Linear)\r\nRegulation Type: Regulating Current (cannot be used as a voltage regulator)\r\nControl Frequency: 15KHz (pulse width)\r\nWiring Type: Screw terminal\r\nRotary Knob: 100K with switch (270°)\r\nSize: 75x56mm/2.95x2.2\"\r\nQuantity: 1 Pc\r\n\r\nNote:\r\nPlease allow 1-3mm error due to manual measurement.pls make sure you do not mind before you bid\r\nDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\r\n\r\nNo Retail Package\r\nPackage Includes:\r\n1 x Speed Controller"]