I have a vintage teardrop shaped chrome stem mounted headlight. It uses 2 "D" cell batteries and has a screw in bulb. I have tried to locate an upgrade for the standard incandescent bulb to no avail. Called specialty websites etc.
My question is, are there any adapters that can be screwed into the bulb socket to accept a halogen or other upgrade bulb? The light reflector is designed for a round globe type screw in bulb, so any type of pre focused bulb probably won't work. This is a tough one. Thanks