E2XTL - 55,000 candela and 500 out-the-front lumens. 1.23" diameter bezel. Very focused beam for maximum distance. Continuous run time is 30 minutes on two CR123 cells or 90 minutes on one 18650 cell.
E2XTL heads fit the larger M600DF, Modlite, and Arisaka 18650 bodies.
