66 dart LED prototype working for now
I will add to slantsixdan's post above by saying I use those Philips X-Treme red 1157s and their X-Treme white 1156s in one of my older vehicles, and they work righteously.
Just waiting on Canada Post to bring me a little something-something so I can add the Zevo 1157 ambers & the flasher units next week.