Eagletac M25C2 Turbo, 1180 Lumens CREE XM-L2 U3 LED Out The Front constant brightness technology and is

constant brightness technology and is IPX-8 Waterproof (2 meters)

Professionals want to switch light modes at lightning speed and adjust brightness equally fast

which is great for use in harsh environments

(* D25A2 clicky and C clicky only)

Eagletac M25C2 Turbo, 1180 Lumens CREE XM-L2 U3 LED Out The Front constant brightness technology and isOutput and Runtime Regular mode: Four brightness levels Led lumen: 118010 536 104 8 ANSI FL 1 lumen: 98011 449 86 7 Runtime (hours): 18 1. 9 11 100+ Tactical mode (default): Two brightness levels + two strobe @ 100% output Led lumen: 118010 172 Strobe I Strobe II ANSI FL 1 lumen: 98010 141 Runtime: 18 7 Seven hidden auxiliary outputs Strobe Disorienting strobe Flash(Hi) S. O. S.(Fast) S. O. S. Beacon Flash(Lo)9 See other battery type runtime here.