The best hydrogen kits on the market have a relay. A good kit should have a HHO relay with instructions oh how to wire it to the engine. It is a vital part in the HHO kit that connects to your vehicle, engine and hydrogen system. Always consider a HHO relay as a means to isolate your HHO generator kit if current draw or amperage is a concern.
When you hook up an HHO generator kit the relay should help protect from too much current draw but a HHO pwm is also a vital part to consider along with a relay. A good set of plans will usually include a relay or HHO pwm when showing you how to build a HHO generator kit.
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![]() 12 Volt 30 40 Amp Relay for HHO Hydrogen Generators US $8.00 |
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![]() 2007 Saturn Relay 3 OBD Fuel Saver HHO Kit EFIE US $89.95 |
![]() 2007 Saturn Relay 2 OBD Fuel Saver HHO Kit EFIE US $89.95 |
![]() 2007 Saturn Relay 1 OBD Fuel Saver HHO Kit EFIE US $89.95 |
![]() 2006 Saturn Relay 3 OBD Fuel Saver HHO Kit EFIE US $89.95 |
![]() 2006 Saturn Relay 2 OBD Fuel Saver HHO Kit EFIE US $89.95 |
![]() 2005 Saturn Relay 3 OBD Fuel Saver HHO Kit EFIE US $89.95 |
![]() 2005 Saturn Relay 2 OBD Fuel Saver HHO Kit EFIE US $89.95 |












