I got the light just because I'm curious. Who cares about run time when it's c cells? It'll be plenty...great- really bright light- for a store bought item. It does feel a bit cheap in the hand- but it's still a high powered bargain!
Not exactly. I think anyone asking about the light at this point is asking about he new CREE version, not the older Luxeon III version in that review. I've seen a couple of current measurement reports of the CREE version of the light on this site ranging from I think 600mA to 1200mA, so I don't know what to believe. I haven't let the light run to darkness yet, but on 2650mAh AA cells in C adapters, it lasts at least 40 minutes for my bike ride home from work. I recharge it when I get home so I don't know if I'm on the edge of darkness, or only halfway there as I'm guessing based on 1200mA.
I think people's assumptions are the CREE is basically running the same circuit as the LuxIII, just with a higher efficiency emitter, so the runtime graph is probably close to the same.