Well, I am working on the same project. I thought of using either a vintage accessory B-31 backup light, or an old bicycle headlight. Both are 6v, and take small 6v bulbs. I have a couple of B-31’s on my Cushman scooter front fender.
Great ideas! Are you making up a light for an outboard?
I’m guessing a lightbulb doesn’t care if it’s getting
AC or DC power, as long as the voltage is correct.
Am I guessing wrong?
Prepare to be boarded!