Re: Anybody know what this is?
And in a 12V system, the 3rd wire is for...?
If you happen to have something that was switched. That's definitely not a base for a light...that's all I know. There is no material on the base to even hold up a light.
In that other post, the OP of this thread already says he has the rear 360 light. He doesn't need the one that clamps onto the front.
Best think for OP to do is to trace down the wires. That will explain a lot. If it goes to a light switch, then its for a light. If it goes straight to 12V through a fuse, then it was to power an accessory of some kind.