Product Description
Not all Fixtures that take an H1 bulb use these adapters, so they are sold separately. If you H1 has an adapter that has similar wings, and a spring spring clip that holds the bulb in place into the fixture, then you probably need these. Sold as a pair.
If your RV has this type of clip system, they probably use Honda or BMW fixtures, it is common for RVs to use automotive fixtures for headlights.