12 volt lights

As for the headlights, the ones I bought are already 12 volt and I think they have 1157 (dual filiment) bulbs (they aren't here right now so I can't check). Did the original headlight use a dual filiment bulb for the dim/bright or was it a single filiment bulb and the dim/bright function was done by the resistance coil in the switch? If it was a dual filiment bulb, is there a bell shaped 12 volt bulb?

sorry this got a bit long - really appreciate all the help I get from this site

For the little bulb under the red “jewel” use a #52 or #53X lamp.

Have never seen a dual filament 1157-style bulb used in that type of headlamp. The dual filament socket bayonet pin arrangement is different from the regular bulb and won’t fit unless the bulb is jammed into the socket. But that’s not to say they don’t exist. I guess I’d take a close look at the bulb socket. If it’s got 2 buttons at the bottom and 2 wires leading from it, it’s indeed designed for a dual filament lamp.