Someone already pointed out that these leds should have 6 tracks, not 12. I also received a 12 track emitter, and I also see these Epistars with 6 tracks all over internet. Unfortunately, you can't find any useful documentation about these, only thing you got are some pictures from some people selling these. Emitter is pretty powerful, but it's only my impression, you can't measure output of uv leds without professional equipment. This is a good led, though, decent value.
365nm vs visible light unsatisfactory comparing to other 365nm cree I have. Also, it is less bright than 5w cree and significantly dimmer than 10w cree I have.