I will second (or third) the Fenix. I have been carrying it as my EDC for about a month now. It is very bright and has a run time of about 3-4 hours on a single AA. At close range (less than 15 feet) it is almost as bright as my Surefire E2, but much whiter. It will light up a house across the street. I am having a hard time justifying EDC'ing the E2 now. All in all a great light.

Ready
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"Do what you can, with what you have, where you are" Theodore Roosevelt