Feature:1. PLC analog speed control can be connected between GND and 0-5V, useful and practical2. Equipped with a digital display screen, display "48" means the current speed is 48% of the maximum speed of the motor3. This potentiometer come with switch, speed control knob realizes 0%-100% adjustment4. Made of high-quality plastic + aluminum alloy material, possess good strength and good corrosion resistance5. This module possess high efficiency, widely used in DC motor speed control and high power controllerSpecification:Item Type: Speed Controller ModuleMaterial: Plastic + aluminum alloyModel: CCM6DSDPotentiometer: Resistance value B100K; opening approx. 8mm / 0.3inInput Voltage: DC12V80VThe output voltage is about 0100% of the input voltageControl Power: Recommended within 12V250W, within 24V350W...48V500WRated Current: 20AMaximum Current: 30ASpeed Adjustment Range: 0%100%Size: Approx. 100 x 75 x 28mm / 3.9 x 3 x 1.1in(Speed control board)79 x 42 x 24mm / 3.1 x 1.7 x 0.9in(digital display screen)PWM Frequency: 21KHz.Package List:1 x Speed Controller Module1 x Screen