Using an original 6V switch with 12V lights on a '

Thanks,

Dave

If you use the old switch install only standard tractor-type sealbeam headlights - not aftermarket halogen (55 watt or higher) lights! Reason: The halogen's higher current draw will overheat the dimmer resistor could perhaps start a fire.

I'm guessing you're converting to 12 volts with an alternator? If that's the case, you won't need the L - H positions on the switch. They're there for use with a cutout/generator to regulate the amount of charge going to the battery. With a regulated system, you won't need the L position and the resistor it puts inline -- the old mechanical regulator with the generator or the solid state version with the alt will do that job for you.

The B D positions are for the lights. There's a air wound resistor that switches in on the D position and dims the lights. If those sealed beams you have are 50 watts or greater per light, you may not want to use the D position as you could overheat and blow the D resistor.

That's my guess of what you're doing - and how it relates to that switch. The switch should work, just don't use all its positions.