So, Kaidomain has Blue and Red Cree XR-E's on 17mm stars! And 3 Watt UV stars @ 410 nm (visable purple light)

They also have a 15 watt white that I'm eyeballing for my headlight project, but 20vf @ 800 mAh is a lot to get, and I can't find a single power supply that can handle that...