"roadrat57".....There are several things that can be going on with your lights....
First, if your lenses are dull, you can polish them or replace them. If you look closely at your headlights, there is a number embossed on them. Google that number and it should bring up the correct lenses in a search. As stated, they are usually off of some American automobile like a Ford or GM. Usually, new lenses are about $100.00 each.
Second, there is a phenomena that occurs when driving a Class A. In your car, you're sitting behind the headlights, looking out over them. In a motor home, you're sitting well above them and looking down at an angle. This will make them not appear as bright.
Third, some manufacturers used undersized wiring and the headlights will not be getting a full 12 volts. This can be fixed with relays. There is an excellent article about headlights, written by
Daniel SternSometimes the cheapest fix can be to add some driving lights. On my previous coach, I added some Hella FF75 driving lights and they worked great for illuminating the road so that I wasn't over driving my lights. They were low and didn't blind oncoming traffic.