The Fenix LD-01 in stainless has been my EDC light for about two years now. Really bright with 10440's but battery life is too short with 'em. Still plenty bright with NIMH's . I wish the brightness levels were spread out more though. I like the size. You don't even know you have it on you until you need it. The threads have worn out within a year on every aluminum light I've had, but not this one. The stainless holds up much better in a pocket full of change and keys too.