what colors are you using for those spotlights on SM?
Red, green, yellow and purple.
Wasn't real impressed with the led's when they first came out, I bought a couple sample packs and about half of the 555 base didn't work and the ones that did fell out and none of the 44's worked at all.
Tossed them in the trash and figured I was done with messing with them, they seemed to be unreliable and more hassle than they were worth.
I have a buddy that is into them and he came over with his mega assortment and went wild on my TZ and I ordered a bunch to fill in the ones he didn't have.
So far I have done the spots on all my Sterns with these ultras and I have a bag of the reflectors (13) now, I always thought they looked like crap and blocked the view of a lot of the shots.
After install I wrapped a 1 1/2" piece of electrical tape around them to black out the bases and hold them in place.
He had some of the retros, those look really good under the plastics.