[Tinker]

Originally Posted by michael a

What you have is a constant on solenoid you can ground either of the smaller post and by the same token you can light up either the smaller post to get the solenoid to work and what it is is not a regular starter solenoid but a solenoid that they use 4 heavy amp usage instead of burning up a switch you run the big wires through the solenoid they were great for starters and where they really shine is on things like fire and tow trucks where there is a ton of Lights and you run it off the solenoid and let your switch just energize it

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Okay I think I get it??