I have had the Hella 500s in my aluminess bumper for 15 years. Only used them in the fog twice. I do like that they cover the side of a mountain road although not very bright. And using them alone with parking lights while going through camp grounds. I also use them sometimes on the highway and have never had a driver flash lights at me. Can you get away with that using the 63311s? I do like the idea that they are 6" diameter as are the Hellas so won't look out of place in the big holes of the aluminess bumper. I would appreciate any comments you can give me. Awesome price on the Rigid site. Thanks, Joe