High, medium and low modes plus strobe: High: 2,000 lumens; 315m beam; runs 2 hours, Medium: 850 lumens; 200m beam; runs 4 hours, Low: 100 lumens; 70m beam; runs 24 hours, Strobe: runs 3.25 hours Intuitive switch for easy mode selection, "Set and forget it" no need to cycle through the settings to get to the desired mode Features independently functioning head and tail switches Aluminum alloy body with ergonomic anti-roll body design and textured grip Corrosion-resistant and gasket-sealed BOROFLOAT glass lens; IPX7-rated waterproof operation to 1 meter submersion; not a dive light or for underwater use; 2-Meter impact resistance tested