i did this mod to some cheapo Walmart fog lights on my old 87 wrangler. it gives you very very bright pencil beam fog lights for about 30 dollars a light. just plug into your stock fog light wiring and they will be great.

this is copied from my thread on another forum from 2012. i couldn't find any info on this here so i figured someone could use the info
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i got this from a thread on another forum. its actually a fairly long thread now, 3 or 4 pages but it boils down to this.

remember a year or so ago, i bought those afterburner cheapo fog lights from walmart? they have the black rubber housings? well, that housing is called a par 36 housing and is actually used on tons of different light applications. if you buy the same light kit, and some other bulbs, ge4509, you get 100w fog lights for less then half the price of kc lights and these won;t corrode because the housing is rubber. the bulbs cost 15 bucks each at napa and are on the shelf.

here is the original 35w after burner light


here is how its attached


the old bulb was 4411


here is the two lights next to each other, see how easy this is


here is the new 100w fog light, it puts out a pencil style beam instead of a flood style light


and these suckers are bright, i tried them out, just to see if they would show anything during the day, and they lit up the tree trunk across the yard at noon so they are bright

 

Thank you. Perfect timing, I was just about ready to start a search on fog/driving lights.