WUZHOU 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<br> 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.<br> Note, because there may be color and size differences between the light effect photos and the actual product, please allow 1-2 cm error<br> Quantity: (1 piece) DC motor speed controller, other products not included<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin