I've been among those that crossed over to the dark side well over a year ago. The surprising thing is the JL headlight fixture has such good cutoff with LED bulbs. I was a doubter until I saw this video. You can plainly see how well the JL halogen fixtures perform with LED bulbs from several makers in this video. I bought the SV.4 H13 bulbs and spent the time to make sure they were properly aimed, and so haven't had any people flash me.The haters seem to think that installing LED bulbs in factory halogen housings will cause them to shine too brightly and make it difficult for on coming traffic to see. This is of course, not based on experience installing LED lights and learning how to properly aim them but rather, just being pissed off at LED lights they see at night that they assume were installed in housings not made for them. In any case, I'm apparently a "dickhead" for doing this.