By 1956, Casco's cigarette lighter design was the one that became standardized.Designed by Lawrence Fenn, I wish I could say I was able to find out exactly why this particular design (there were ...

How Many Volts Does The Lighter Produce? A car cigarette lighter has a nominal voltage rating of 12 volts but is limited to 10.2 volts with a maximum current of 10 amps. It can efficiently function as ...

That 12v socket is physically incompatible with the old style cigarette lighter plugs. This was intentional. It is one less thing an auto manufacturer can be held liable for.