The license plate lights illuminate the reflector from above slightly. Apologies for the picture but it's not a night-time camera. It's bright enough to read porsche, but not bright enough to light the entire thing.
If they're universal, then something's wrong with my car. The holes to mount the reflector didnt' line up with the reflector screws. They were off quite a bit. The plate mounts with 2 screws between the tail lights, but the reflector has one screw in the middle. Either they changed the mounts, or my car's a mutant.