So this little headlight is not fun at all! Even the smallest projectors barely fit this retrofit properly.  We added a Morimoto 7.0 Bixenon projector to this set of headlights with mini gatling gun shrouds.  The design of this headlight gives the halos a mean 3/4 eye look which looks pretty sweet when they are on.  Also added was a pair of color changing demon eyes.