When I upgraded the headlights on our '78 Royale I viewed the YouTube clip on the testing of LED headlights and ended up with a set from Opt-7 out of CA. These not only greatly improved the brightness and range of our old std. sealed beams but also included a small set of Daytime driving lights that our coach never had previously. As they are 100% LEDs they do not pull nearly as much power to provide the better illumination and I found them very easy to install and wire. I think the total bill was ~$180 for the kit. Well worth the outlay. They are most commonly marketed to Jeep owners due to the 7" round format.