The CCrane web page is what got me intrested in the light. Since it uses only one battery I thought it must use a step up converter of some sort. So than I called and asked, they said it just used a 3v lithium "AA sized" battery. I asked if a standard lithium AA would fit, they said yes and even tried it for me, but they said it made light, but was very dim. They said it really needed the special lithium battery ($10.95) each.
Brock