Anyone have any suggestions for a quick cheap way to safely power 12 ledengin 5 watters? 4 blue 3.6Vf, 4 red 2.5Vf, 4 deep red 2.8Vf. They are all 1000mA.

I was thinking 3 series strings in parallel to the PSU? But I am not sure how to do the circuit calcs. The online calcs wont let you mix and match that way.