I got some from XenonHids.com when I first got my XD. Wanna say they were about $100 but they were definitely worth it. FAR brighter than the cheap H11 LED's that I got. Their warranty is fantastic too. Had one start to flicker after several years...called them and explained what was happening...got a new one in about 3 days. When they plug in they have a harness with some "electrical" stuff that I don't know what it does...but they are BRIGHT.