Welcome to the store! 1. Contains a 30A fuse and with the protection function of reverse connection of power supply. 2. High power, digital display. 3. Potentiometer with switch function. 4. Large 0.56-inch 3-digit LED display numbers allow viewing under the most unfavorable conditions. 5. The display range of the 3-digit LED display is "000"-"100". (For example, "055" is displayed, it means the PWM output duty cycle is 55%). Features: Contains a 30A fuse and with the protection function of reverse connection of power supply High power, digital display Potentiometer with switch function Large 0.56-inch 3-digit LED display numbers allow viewing under the most unfavorable conditions Display range of the 3-digit LED display is "000"-"100". (For example, "055" is displayed, it means the PWM output duty cycle is 55%). Specifications: Model: CCM6DS-D Input Voltage: 12V-80V DC PWM Frequency: 21kHz Adjustable Duty Cycle: 0%-100% Suitable Current Range: Rated current: 30A Module Size (with housing): 110 * 77 * 35mm Display Unit: 79 * 42 * 24mm Potentiometer Cable Length: 0.79 inches Package includes: 1 x Digital Display CCM6DS-D DC Motor Speed Controller with Housing Note: -Do not reverse positive and negative power loads. This will damage the controller. To change the motor direction, swap the motor's positive and negative wires. -Ensure the power is turned off before attempting to connect the controller.