I don't like buttons of any kind on flashlights. Every one breaks eventually. I like direct contact like ARC AAA's, CMG Infinity and Fenix EO1. Gerber Infinity and Fenix EO1 uses a spring to stop rattles but it can break also. The ARC AAA uses a foam washer to stop rattles and it can't break. When I want light I want all I can get NOW. Our Grandfathers were pretty happy with a two D cell incandescent bulb light. My small ARC AAA light is brighter than those old clunkers. The more bells and whistles the more can go wrong. To me a perfect light has already been made. It was made obsolete by being " improved ".....

BOATMAN
John