Gerber (the knife company) makes some pretty good flashlights. The Infinity Ultra Task Light can run for thirty hours straight on one AA battery. They also make the Bear Gryls light. It has a water proof match case on one end. I have one and use the match case for a spare battery. Just be sure to put some tape on the ends of the battery. Sixty hours of light in the size of a mini Maglight is darn good. It can fit in the Niteize head band for Maglights. I also have a Arc AAA Premium and a Fenix LD01 AAA and have one in my pocket always.

BOATMAN
John