I've had a Surefire E2D Executive Defender for about nine years. I love the light, except for the batteries and the incandescent bulb. I'm trying to get away from CR123 batteries due to cost and inconvenience. I'd love to put an LED, two-mode drop-in in it, but absolutely, cannot find one (please share if you're aware of one). Does anyone know of an LED flashlight similar to the E2D (with a defensive-type bezel) that takes AA batteries?