So Fellas, I guess I'll tear the wiring apart and attach both fixture wires to the single hot feed wire, ay?
BarnieTrk
Since bulb has 2 filaments, the hot to one wire will give a dim light, hot to other wire will give a brighter light. Ground is through the mount. If you mounted the lights on a non metal fender you'll have to run a ground wire from frame to light mounts.
Barnie,
If your fixture is not grounded, connecting the two wires to hot and ground means they are operating in series. So both filaments are lighted, but with half voltage. No wonder they are dim.
Terry
Ok George. I will tie both of the wires coming out of the light fixture to a single hot wire and run a ground wire to ring fastener at the fixture's bottom fastening nut. -- BarnieTrk