I already got one from Fasttech for around 2 dollars. :)
yeah, beats my shipping costs. but always willing to help out a fellow BLFer with the random junk i got layin around that i cant bring myself to throw out 
500kcd would be most impressive Scaru. Most impressive with out a doubt.
Running on the edge of heat management but who the heck cares when max output is the goal.
Fingers crossed.
Hmm… I have an old projector in my basement. I wonder if I should tear it apart. It’s a Buhl model 80 like this
The big round lens up on top looks promissing, All is really matter is the size.
If the focal point is too long, you’ll need two of them together, it cuts the EFL to half.
To find the focal point, put a led behind until you find the distance where led image is projected on the wall.
Or, take it under the sun & find the distance that can zap an ant…
Where did you get this chart?
Hmm... I'll look around a bit more, but I can't seem to figure out where I got this from. Sorry.