Nate; I too use the task force light as a bike light. Works well
though I've had the occasional rider coming toward me shield their
eyes! Am working on a light shield that will provide a sharp cutoff at
the top of the hotspot .I use some older 1800 mah nimh's that give me
a runtime of a bit over an hr- bout right for the length of my ride on
a fairly well lit path in the wee hrs. Pat