I bought a Koito biLED projector out of a Prius. It looks pretty similar, though it's obviously made to fit the Prius headlight, not for a retrofit. It's a little chunky on the bottom.
Here are a couple pics comparing it to other projectors.
I never actually got around to modding it into my housing. Just playing around with it, it seemed to have a pretty good projection area with nice even light. It has the standard bi- operation, but it also has another wire to trigger a low-power fanless DRL mode too.