Review on RV Exterior Porch Utility Light with Switch - Leisure LED 280 Lumen 12v Lighting Fixture. Ideal 🚐 Replacement Lighting for RVs, Trailers, Campers, and 5th Wheels. Black Base with Clear and Amber Lens (1-Pack, Black) by Michael Radhakrishnan

I have a solar array on my utility trailer and use these bulbs for interior lighting and also one for 'porch' lighting. The porch light is on 24 hours a day and has been for a few months. The design of the light doesn't let rainwater onto the electronics (I think) when mounted on a flat surface. At least that's how it works for me. Their energy consumption is minimal, but they put out a lot of light - not too bright - but just enough for use in an RV or cargo trailer. The design requires tiny screws for assembly. The included screws are about 2 notches below cheapest ever, so are easy to loosen if you don't remove the heads first. I used a square head cabinet screw. . . I think this is what I linked in this review and it works like a champ.