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How much energy is put into a glow plug on average?
How can I get that right balance where they work like they need to but I don't blow it out with too much power?
It varies with the type, but anywhere between 5A to 15A for 12v systems, so 4 plugs can be 60A which is why the cable used is a heavy gauge . The power is then between 60W to 720W.
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