What are these halogen bulbs from a traffic light?
December 3, 2013 8:16 AM Subscribe
I have a UK traffic light head with 3 halogen bulbs (12V AC). The bulbs it came with are just like G4 12V halogen bulbs, except that the legs are fractionally thicker. It seems like they are not G4 bulbs -- so what are they?
posted by richb to Technology (5 answers total) 1 user marked this as a favorite
When I buy new G4 bulbs, they don't fit well in the original bulb sockets; they are loose (but they do fit, and they do work).
I have replaced one of the bulb sockets with a new G4 socket fitting, as the original fitting burnt out. Now the original bulbs won't fit into my new G4 spec socket, as their legs are too thick.
So what bulb spec are these bulbs, which look identical to a G4 to my eyes, but have ever so slightly thicker legs?