Re: THE BIG DOG!! LZ's 9xR2 Moby ****
If anyone want to see beamshots, Big Dog is similar to light #2 in
this shootout thread.
The light in the linked thread does have (2) 19mm aspherics in place of reflectors, which can be fitted to Donn's light as well.
As fast as LEDs have been advancing, this light was built relatively long ago and could easily be old news. But amazingly it is still right up there at the top of mega-throw LED mods, and I'd build it exactly the same today.
The unique thing about this light is that it only needs 7.4V, 2 high-current li-ion cells will do.