I will host the vb file for you..(InfiniteReality @ Aug. 29 2007,10:14) LED Calculator a friend of mine & I put together (I initally wrote a VB program but that won't work on here without someone to host it... So I gave him the formulas and he wrote the web-based program)... =)
http://24.143.29.254/led/
Also, the mirrors are an interference fit in the housing? just heat for 6 minutes at 350 and pry them out? if so, what do you pry them with?