I bought these for a teardrop trailer I built myself. They look fantastic against a white Baltic birch ceiling and walls. Unlike most LED bulbs, which have an awful blue and white appearance, they give off a warm and cozy vibe. I just ordered another set to replace my old ceiling lights in my '95 Nissan Pathfinder. I plan on removing the old, inefficient light bulbs from behind the driver's seat and in the trunk, drilling a 2" hole in the diffuser, painting it black, and soldering wires to plus and minus where the bulbs were, and to to install. Now I can still use the standard OE switch to turn it on and off. Just note that the white wire is negative and the black wire is positive. I don't know why they did it, must be an RV thing.