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.

10-50V 60A DC Motor Speed Control PWM HHO RC Controller 12V 24V 48V 3000W MAX
10-50V 60A DC Motor Speed Control PWM HHO RC Controller 12V 24V 48V 3000W MAX $15.88
Time Remaining: 7h 10m

12V 24V 48V 40A DC Motor Speed Control PWM HHO RC Controller 2000W MAX 10-50V
12V 24V 48V 40A DC Motor Speed Control PWM HHO RC Controller 2000W MAX 10-50V $9.88
Time Remaining: 7h 9m

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: 5d 22h 6m

DC 10-50v 12V 24V 48V 3000W 60A DC Motor Speed fan Control PWM HHO RC Controller
DC 10-50v 12V 24V 48V 3000W 60A DC Motor Speed fan Control PWM HHO RC Controller $10.50 (5 Bids)
Time Remaining: 5d 7h 32m

DC 12-30V 50A Frequency Adjustable PWM HHO Controller
DC 12-30V 50A Frequency Adjustable PWM HHO Controller $58.00
Time Remaining: 4d 20h 36m

Motor Speed Control 12V 24V 48V 40A DC PWM HHO RC Controller 2000W MAX 10-50V
 Motor Speed Control 12V 24V 48V 40A DC PWM HHO RC Controller 2000W MAX 10-50V $12.05
Time Remaining: 26d 23h 20m
Buy It Now for only: $12.05

12-30V 30A PWM Pulse Width Modulator HHO Controller
12-30V 30A PWM Pulse Width Modulator HHO Controller $24.80
Time Remaining: 3d 21h 6m

HC3020 - HHO PWM LCD Digital Programmable Regulator 600W 12V/24V (30V max)
HC3020 - HHO PWM LCD Digital Programmable Regulator 600W 12V/24V (30V max) $85.00
Time Remaining: 26d 19h 10m
Buy It Now for only: $85.00

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 15h 28m
Buy It Now for only: $17.00

12-40V 30A 360W Hydrogen Booster HHO PWM Controller
12-40V 30A 360W Hydrogen Booster HHO PWM Controller $28.00
Time Remaining: 2d 21h 36m