Im no mathematics genius either but lighting isn't that difficult....To be totally honest I’m clueless when it comes to mathematics. What lighting would you go with?
Those LM301b EVO lights are nice, but they sure are pricey! It doesn't look like Samsung is charging a premium for them, though. I see them on DigiKey for $0.43 per diode, and the LM301b for $0.50. I'm waiting for the price drop - or for my other lights to die : )