I have owned several of the lights mentioned here and others as well. I have gotten tired of DX lights from China that are amazingly bright but unpredictably stop working at inconvenient times too... I also do not like the big clunky dedicated lights that seem to be steal targets too. My newest favorite is this http://edcplus.com/black-xeno-e03-wi...e-t4-p-16.html which puts out 480 certified lumens on high and it uses either a single AA or a 14500 cell. Have to use the rechargeable 14500 to get the max output though,but still pretty bright with a regular AA. On medium it gets about 90 minutes of output before needing to have cell replaced or recharged. The light is basically tiny, just a little bigger than the battery and visually looks so small no one steals it because they are looking for something that looks like a real light. This is the equivalent of the "noisy cricket" gun that Will Smith gets in the Men in Black movie. Looks tiny but amazingly powerful when activated. This light is so great you will buy a second one to keep in your pocket or to take backpacling as it is so small. It is shock resistant and waterproof to 30 feet. It has really good quality o rings and nice square threads which feel so solid when you screw on the back too. All for $32 bucks (even less if you shop around).