HHO PWM 12v 70a with Fan and Case

*Max Output 70AMPs, 30KHz *Auto Save. *The Frequency and Duty Cycle can be auto saved. When the data achieves your need, stop tuning for 2 seconds. The data can be auto saved. *Memory After the Duty Cycle and the Frequency was saved, the OGO-PWM70 will run at this recorded data next time when it is powered on. *Working Voltage OGO-PWM70 can work at 12V. *Output Frequency OGO-PWM70 can output frequency from 10Hz to 30kHz. *Duty Cycle: 0%~99% *Dual in Dual out wires, easy connection.