I EDC a Fenix L2D (2 Years) on my belt and an ARC-AAA (4 Years) on my keychain. Both have been great lights thus far. Prior to the Fenix L2D I had a Pelican 2330 M6 LED which performed well, but burned through CR 123 A cells far to quickly for my liking though I had a charger for them.
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"Learn survival skills when your life doesn't depend on it."