Electricity travels on the outside of wires on the surface through the electrons of atoms. Ts how the energy flows.

You understanding it though. On circuits you are correct on fuses. You always create the circuit to just be slightly less the the fuse so the circuit burns the fuse.

Here were gets interesting. The LED are diodes. So they only let current flow on direction.

This is way the high beam indicator etc will not work.

What's concerning me is that in certain situations. These led in circuits wil not let the fuse burn properly .

This is why on occasion we are seeing dash burn up because the circuits are designed for this.

The only workaround are leds that are resistive loaded or resisters in the circuits to have the circuit function as it should.

Anyways, what you can do is always jump a wire gauge up one or 2 sizes then the current load of your circuit then just put the proper fuse in. This way it will burn the fuse before starting to heat up and melt your wiring. Plus only a few amps above your maximum current capacity.

This is why Voltage on fuses isn't as important. The fuses just burn open to protect other things. As that's their purpose in the circuits


I hope this helps in your understanding of your project.



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