I did not actually buy the wiring it came with the truck when I bought the truck. It had already been converted to 12v. I think the wiring came from Classic American parts not for sure. I did contact them and they told me that I had to troubleshoot as why I did not have 12 volts which I am not very good at. The truck had a ballast resistor when I got it. It should have been 12 volt because they ran the truck just after it was overhauled. I was not there when this happened.
