Mine is bolted onto a piece of 14-16g sheet metal, as long as the license plate, bent into an angle, and bolted up to the underside of the pintle/bumper.
I'd like to get a Class III hitch...so I might put it on a hinge so I can flip it up when I use the hitch. Or I'll have to find another place for it.
And as far as I know; In WI if it didn't come from the factory with a plate light, it doesn't need one. But I might get some of those lighted license plate bolts for it, just for "schlitz" and grins.