"The Streamlight Strion DS HL Rechargeable Flashlight boasts powerful illumination in a compact package. High beam setting produces an incredible 700 lumens, reaches out to 219m, and runs for 1.25 hours. 300-lumen medium beam reaches out to 141m and runs for 3.25 hours. 40-lumen low beam reaches out to 57 meters and illuminates for 20 hours. Strobe function operates continuously for 2.5 hours. C4 LED technology withstands shock and delivers a 50,000-hour life span. Dual Switch Technology incorporates tail- and head-mounted switches that operate independently of each other for maximum versatility. IPX4 water-resistant, anodized, aircraft-grade aluminum housing with a Borofloat high-temperature glass lens. Clamp charger prevents overcharging and displays charge level, while the PiggyBack charger charges a spare battery (not included) for double the run time. Anti-roll head prevents the flashlight from rolling away when you set it down. Rechargeable lithium-ion battery fully charges in as little as 3 hours. Optimized electronics and battery for up to 1,000 recharges. Length: 6.33"". Weight with Batteries: 5.4 oz. Mfrs. lifetime limited warranty.Manufacturer model #: 74621. High setting produces 700 lumens Medium produces 300 lumens Low produces 40 lumens Strobe function for signaling or disorienting C4 LED technology withstands shock Dual Switch Technology features tail- and head-mounted switches IPX4 water-resistant, anodized-aluminum housing Borofloat high-temperature glass lens Clamp charger prevents overcharging PiggyBack charger charges an optional spare battery Anti-roll head Charges in as little as 3 hours"