This is an outstanding light that has been very well thought-out. Both high and low beams are perfect for their intended purposes, the beams are focused very tightly for maximum distance--especially on the brighter setting, the size is great, the momentary/click-on-or-off button switch is great, and it's the brightest light for its size I've ever owned (I've owned over 50 lights, all modern designs.). Unfortunately, SureFire has also once again managed to over-price its product, even when considering R&D expenses. As soon as other makers--Streamlight, etc.--come up with their own versions that don't step on SureFire's patent rights, you can bet that the others will out-sell SureFire by at least 5:1. SureFire's name and overkill just aren't worth it. I only bought another one of these because I absolutely need it to go along with the two I previously bought. Then I'll wait till the other quality brands come out with their own versions and get some of theirs.
Pros: Versatility, size, brightness, toughness, beam collimation
This review was written in the old system and had content requirements that are different than reviews written today.