Fenix. I have 5 of them, plus the head piece assembly that you can put two of the lights into and the bike mount. When I need a flash light I don't even bother looking at the others. My very first one is about 7 years old, it still works but I can't adjust the brightness after I used it as a hammer.
I can personally recommend the Fenix LD10 and LD40. Both are AA flashlights and truly amazing how much light they're able to output and how far they can throw. The LD10 is pocket size and very easy to carry. The LD40 is about the size of a 2 D cell flashlight, but with flat sides. The LD40 in particular has four light levels and I'd say the second level is about as bright as a 2 D cell MagLite or perhaps a little brighter. The third and fourth levels leave it in the dust and have an amazing throw. They're both excellent for camping and the like.
I've got a shoe box full of various lights from these guys. The 14500 battery lights are AA size and can typically use anything from 1.2v rechargable to 4.2v li-ion (14500's) batteries. The li-ion 14500's give max brightness.
Those in the flashlight know, I have a Mr Bulk Lion Heart that has been upgraded with a newer and brighter led. It's nicer, but the $15-20 lights are
currently brighter. (ouch).
I also have a selection of 18650 powered lights. 4x the light time of the 14500's.
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