2009 Itasca Cambria, I went with headlight revolution LED and the improvement is fantastic. They are plug and play and easy to install. I was considering installing driving lights because there was a dark spot in the pattern i couldn't eliminate with adjustments.
The website has a video that fully explains how to install them . Once installed find another video that explains how to adjust your headlights to eliminate "flashing" from oncoming vehicles. Headlights have no side to side adjustments, only up and down and with a piece of chalk and a looong screwdriver it is easily done. Its as easy as a chalk markon a wall at night then backing up 25 feet away and lining the pattern with the chalk.
My mistake was installing the LED'S then driving to Phoenix, my lights were illuminating the overhead signs, interestingly enough oncoming traffic was not affected. Totally eliminated my need for driving lights.