There were a couple here that replaced the entire fog housing, a fairly easy job. Dunno the details off hand.
If you are looking for function, there is nothing that outperforms the OEM bulbs that won't also melt the housing. If you are looking for style, there are several options. H16 bulbs need trimmed to fit but several outfits sell plug and play, highperformancebulbs for one. I've been using theirs for a year now.
2011 Grand Cherokee Overland V8, 2009 Liberty Rocky Mt V6, 2000 Grand Cherokee Laredo I6, 1979 CJ7 I6 Quadratrac