625-lumen weapon rail mount flashlight; run time on high, 1.5 hours and 2 hours to 10% outputWhite LED technology, impervious to shock with a 50,000 hour lifetime; TIR optic produces a concentrated beam with optimum peripheral illuminationTEN-TAP Programming: Choice of three operating modes: 1.) high/strobe; 2.) high only; 3.) low/highGlass lenses, O-ring sealed2 meter impact resistance tested