I own 3 Fenix lights, don't recall the model numbers off hand. All have been excellent on brightness and battery life, running at least twice as long as the same lumens in other brands.
Two reside in the truck and car as emergency lights, the one in the truck has been somewhat abused by dropping, rolling around under the seat, and general tumble.
I have a pocket clip model that runs on one AA battery as long(er) as my Surefire Executive does on two C123s. It's replaced every other flashlight in my hunting pack, and I can carry one set of batteries for the GPS and the flashlight. Fenix makes a great light IMHO, and I'm not surprised to see these results.
Another good review, Blue.
