Featuring 2,000 lumens, an aluminum alloy body, and a mode selector switch, the Stinger 2020 S is reminiscent of the well-known Stinger 2020, but has a single head switch, a new lithium-ion battery pack, and offers PiggyBack charging options to ensure you always have a charged battery at the ready to double your run time and reduce down time. High, medium, low, and strobe modes: 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 for disorienting or signaling: runs 3.25 hours Intuitive mode switch for easy selection of high, medium, or low "Set and forget it" - no need to cycle through the settings to get to the desired mode Features a single head switch Uses (1) 5,200 mAh Stinger 2020 S protected Li-Ion rechargeable battery pack Charges in the light with existing Stinger chargers or via PiggyBack charger Aluminum alloy body with ergonomic, anti-roll body design and textured grip Corrosion-resistant, gasket-sealed BOROFLOAT glass lens IPX7 waterproof; 2m impact resistance tested Length: 7.69 in (19.53 cm); Weight: 12.2 oz (346g) TAA Compliant Limited lifetime warranty