Eric Zeno wrote:

>In any wiring system, current is the main limiting
>factor to the wire itself.  Having problems with this
>in the head light circuit, rather than re-wiring with
>thicker wire it is easier to keep the same power
>to the lights by doubling the voltage and running
>half the current.
>
Your logic is fine, except that you have a really strange idea of
"easier". ;)