Pulse Width Modulators or PWM can limit the amount of current that an HHO generator draws and keep it from going beyond a set amount. It controls the amount of amperage your hydrogen generator uses. The higher the frequency generally the more efficient you HHO generator will be with less current while controlling temperatures.

You may have asked yourself what is the purpose of using a 30 amp pulse width modulator with a HHO generator?  PWM controllers help to maximize HHO gas production with available current. You can also use 60 and 80 amp pulse width modulators for larger projects.

A PWM pulses the plates of your HHO generator several hundred or thousand times per second. By doing this you can use lower voltage and less current and the electrolyte operates at a lower temperature.

12-40V 30A 360W Hydrogen Booster HHO PWM Controller
12-40V 30A 360W Hydrogen Booster HHO PWM Controller $28.00
Time Remaining: 6d 14h 21m

US 10-40V 40A DC Motor Speed Control PWM HHO RC PLC Controller 1600W MAX
US 10-40V 40A DC Motor Speed Control PWM HHO RC PLC Controller 1600W MAX $16.65
Time Remaining: 29d 13h 44m
Buy It Now for only: $16.65

2x 6-90V 15A Motor Speed Control PWM HHO RC Controller 1000W MAX 12/24/48V DC
2x 6-90V 15A Motor Speed Control PWM HHO RC Controller 1000W MAX 12/24/48V DC $15.49
Time Remaining: 28d 22h 2m
Buy It Now for only: $15.49

Make a HHO CCPWM V2.1 - The Constant Current PWM, H2O2-PWM Plus V2 - PCB Only
Make a HHO CCPWM V2.1 - The Constant Current PWM, H2O2-PWM Plus V2 - PCB Only $8.95
Time Remaining: 28d 15h 2m
Buy It Now for only: $8.95

10-50V 40A DC 12/24/48V 2000W MAX Motor Speed Control PWM HHO RC Controller New
10-50V 40A DC 12/24/48V 2000W MAX Motor Speed Control PWM HHO RC Controller New $9.39
Time Remaining: 28d 14h 26m
Buy It Now for only: $9.39

MXA033: DC MOTOR HHO / PWM SPEED CONTROL 15A MAX PWM 12V / 24V ASSEMBLED KIT
MXA033: DC MOTOR HHO / PWM SPEED CONTROL 15A MAX PWM 12V / 24V ASSEMBLED KIT $17.00
Time Remaining: 3d 1h 53m
Buy It Now for only: $17.00

DC12V 24V 36V 50V Motor Speed Control Controller PWM 21khz HHO 1500W 30A Switch
DC12V 24V 36V 50V Motor Speed Control Controller PWM 21khz HHO 1500W 30A Switch $13.28 (1 Bid)
Time Remaining: 2d 22h 49m

DC12V 24V 36V 50V Motor Speed Control Controller PWM 21khz HHO 1500W 30A Switch
DC12V 24V 36V 50V Motor Speed Control Controller PWM 21khz HHO 1500W 30A Switch $18.98
Time Remaining: 25d 17h 25m
Buy It Now for only: $18.98

DC 12-30V 30A 360W PWM HHO Controller With Cooling Fan
DC 12-30V 30A 360W PWM HHO Controller With Cooling Fan $31.00
Time Remaining: 2d 14h 51m

HHO Dry Cell Kit Hydrogen Generator with map enhancer and pwm
HHO Dry Cell Kit Hydrogen Generator with map enhancer and pwm $175.00
Time Remaining: 25d 6h 20m
Buy It Now for only: $175.00