It's a pair of the Costco tactical lights, three AAA batteries in each. One pointed forward for illumnation, one pointed down and strobing to alert drivers to my position.

What do you think?

$15 for the flashlights, another $15 for the mounts, and a million dollars for batteries unless I can find a six slot charger for triple A's. Actually a twelve slot charger for triple a's. One set for on the way out, another set for coming back home.