Instantaneous start-stop switch: designed with instant start-stop switch and speed potentiometer. Stable performance: This easy-to-use DC motor governor works stably. Durable: The speed controller is made with high quality circuit boards to ensure long life. Digital display: It adopts digital display design to display the percentage of actual speed and maximum speed. Convenient and fast wiring: The motor governor adopts screw terminals, which is convenient and fast for wiring. Product features Digital display 0-100 percentage meter accurate positioning. Voltage: DC6-60V Output voltage: Linear output current under load: 0-30A Continuous current: 20A Speed regulation type: current regulation Speed regulation mode: potentiometer speed regulation range: 0100% Control frequency: 15KHZ Wiring Type: Barrier Terminal Knob Wire Length: 18CM Module Size: L*W*H96mm*61mm*34mm Product Net Yield: 120g Panel Opening: Length*92mm*56mm Speed Digital Display: Percentage 0-100 Note: The digital display is a percentage, not the actual speed of the motor. Meaning: The input voltage must be positive and negative. The input voltage of 220V household electricity must be equal to the rated voltage of the motor (within 6-60V). For example, the rated voltage of the motor is 12 and the input is 12V. Note, because there may be color and size differences between the light effect photos and the actual product, please allow 1-2 cm error Quantity: (1 piece) DC motor speed controller, other products not included