The dummy cell that surefire sells has to be shortened before it will work with the AN14. I took a dremmel tool with a cutoff wheel and shortened mine. Now starting with a G2, I can get 60lu/hr..120lu/20min...105lu/hr..and 200lu/20min. All out of the same light, just screw on the parts I need. My g2/3 now has a clickie lock out switch also.