ASP Tactical Triad LED Light LED Baton Light. 3 1/8 overall. 6061-T6 aircraft aluminum body with satin black hardcoat finish. O-ring sealed for water resistance. Foam vinyl grip. Uses two CR123 lithium batteries for 1 hour of runtime, or you can interchange the power cell tubes to use 3 cells for 2 hours runtime or 4 cells for 3 hours runtime. 3 high output Cree LEDs for 240 lumens of output. Overmold tailcap activation switch. 3 position rotary collar, locked, on/off, and intermittent." 3 1/8" overall. 6061-T6 aircraft aluminum body with satin black hardcoat finish. O-ring sealed for water resistance. Foam vinyl grip. Uses one CR123 lithium battery for 1 hour of runtime, or you can interchange the power cell tubes to use 3 cells for 2 hours runtime or 4 cells for 3 hours runtime. 3 high output CREE LEDs for 240 lumens of output. Two position activation switch.