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Originally posted by 46 in progress:
I wonder if anyone would sell a 6V bulb? That way you could buy a semi-modern Unity and drop in the 6V bulb.

The new ones all have black plastic heads. They work nice...but..No Chrome...
I dunno. I have a question in to an Ebayer about that right now. There's a lot of"antique" Unity spotlights listed, but no one sez anything about voltage.

It would take some serious cobbling to convert the Perfection light that I have now to anything else, the bulb socket is single wire in the center with a connection that allows it to pivot and still make connection. Ground is common thru the truck cab. Works good though.