Foursevens Cool White LED Flashlight, Black MMX-360-AF Special Modes: Strobe: Strobe: 920 lumens at 10hz, 3 hr SOS: 4 hrs Beacon(High): 12 hrs Beacon(Low): 15 hrs Included accessories: Batteries, lanyard, spare o-ring, holster, non-crenated spare bezel,flat grip-ring spacer Brightness Levels: Moonlight: 1 lumens, 22 days Low: 15 lumens, 20 hrs Medium: 210 lumens, 4 hrs High: Burst at 920 lumens, 1 minute then 460 lumens, 1.5 hrs