Yes, it will work, because of a computer problem I cannot give you the thread today. Jim Jones has done some extensive work with them and I have a long comment hypothesizing why it works in his thread. I am using a A123 powered 5761 with a 254mm aspheric. I am building another at this minute, I just took a break. Please look up Jim Jones, from member page and look up all threads started and I think you will find it. It works differently than what you do with an LED and aspheric lens. You end up with a true flood/spot, works like stage lights.
The beam remains the same diameter but focusing changes the size of the hot spot from flood to tight spot. Obviously the spill beam works in reverse to the spot. You do not get a focused image. The technique is critical to the focal length of the lens, we found one paticular 254 to be the nuts. I believe it basically is projecting a beam that is out of focus and based on a crossectional plane of the reflection out of the reflector, oh well, please look up my post in JJs thread and see what you think. We have no real idea why it works, but it does.
He has listed several lights build like this in b/s/t with various lenses. I am also working this week end on a 64430, 4C size on A123 cells, a jack and AW driver for 2250torch lumens/ 1400/700 and run time of 20/40/60 theoretical based on the driver. I will post it if it works like we think it will.
