Both a tail cap and a head-mounted switch. Switches operate independently. Three modes and strobe: - High for a bright super-bright beam - 425 lumens; 322 meter beam; runs 3 hours; 26,000 candela - Medium for bright light and longer run times – 200 lumens; 219 meter beam; runs 5.5 hours; 12,000 candela - Low for light without glare and extended run times – 100 lumens; 155 meter beam; runs 10 hours; 6,000 candela - Strobe runs 7.5 hours Durable aluminum body with non-slip rubberized comfort grip IPX4 water-resistant; 1 meter impact resistance tested Rechargeable NiMH battery Steady charge, smart charge, or PiggyBack charger options Anti-roll rubber ring included Unbreakable polycarbonate lens with scratch-resistant coating Length: 8.85 " (22.48 cm); Weight: 12.8 oz (364 grams) Serialized for positive identification Limited lifetime warranty