Thank you selfbuilt. But I have to give my own little review of this flashlight. I search for the ultimate EDC in AA because I 1/2 use 8-24 AA batteries on 1 photoshoot with no getting around it. And I use a flashlight every day, not just carry it. I bought and broke 3 Itp's. The fact that they broke made me switch brands. Bought a Trustfire, lasted a year (little guy drooled on it for awhile and caused a short somewhere). Just gave away my Eagletac D25A, found it too hard to turn on quickly because the button was surrounded by metal and my finger wouldn't fit in the button recess. Ordered the Xeno tiger E03 V3, now sitting on my desk as I decide what to do with it because the modes are too fiddly and the button is again slightly to small to get my finger in quickly. Durring this time, I have had the S15 and used it off and on. I love the modes, I love the interface, love the size. But, and here is a big but- I have gone through more batteries with this light than I thought possible. When its in your pocket, even in the lockout mode, it can, and WILL turn on. I have pulled it out of my pocket so many times and the battery was dead, that I decided to get a new light, hence the others listed above. This light has what I consider to be the best interface of all the others I have carried. You have access to moonlight and strobe as soon as you pick it up, high takes a second. I carry it now with the base slightly screwed off, which makes it very awkward to use, but at least it comes on when I take it out of my pocket. I'm waiting for my SRT3 and Zebra H52 to see how they fare. As you can see, for my EDC, brightness isn't parramount, but light, size and handling are. I have 2 surefires and other RCR123's that I use also, so my comments are relevent to AA EDC lights only. Thanks for reading.