ITEM NAME:9-50V DC Motor Speed Control PWM HHO RC Controller 2000W 40A 12V 24V 48V KCM.(4) PWM Duty Cycle: 5%-100%. (5) PWM Frequency: 12KHz. We'd like to settle any problem in a friendly manner. We want to make sure you are happy with our item. Goods without RMA number will NOT be accepted.
