I have a Surefire G2 with an upgraded (120 Lumen?) bulb. It's bright and tough, but it eats expensive CR123 batteries like candy and gives almost zero notice when it's going to go dark. It seems that LED gun lights (Like the G2, a light designed to accompany your firearm, for target identification. Must have a lanyard and tail cap mounted momentary/on/off switch.) and have replaced the older bulb styles, and mini USB rechargeable batteries are even available. What I'm not finding is a good quality LED gun light that includes a momentary switch with the on/off switch. This makes a quick, silent flash of the light impossible. I've laid my hands on a few LED tactical lights, and I'm impressed with their bright white light and battery options, but I'm really looking for one as ergonomic and user friendly as the Surefire G2 with a momentary tail cap switch. I have seen where Surefire has LED conversions for the older lights, but they still use the CR123 batteries and I'm trying to avoid them as well. AA and AAA are easy to find, and I've been beating up several Streamlight rechargeable lights for years. They have a momentary/on/off tail cap switch, so I know it can be done with an LED light, I just can't find a brighter one that does. Does anybody have a favorite?