Anti-roll head prevents the light from rolling away Strion Light Output and Run Time Strion LED Rechargeable Flashlight Ultra compact and powerful, Streamlight's Strion LED rechargeable flashlight offers three microprocessor-controlled variable intensity modes, strobe mode, and the latest in power LED technology. The combination of rechargeable batteries and high output from the C4 LED technology results in one of the lowest operating costs of any flashlight made. This version of the Strion LED flashlight (model 74303) comes with an AC charge cord for the home; a charger/holder and a DC charge cord are sold separately. Streamlight's C4 LED Technology Basic LEDs provide a number of significant advantages, including significantly longer run time, an almost infinite life, and amazing durability since there is no glass or filament. A downside to basic LED bulbs is that they're not especially bright, but Streamlight has tackled that problem with its C4 LED technology. Producing a brighter, more powerful, blinding light than any LED that's come before, the Streamlight-engineered reflector with C4 Photonic Crystal technology almost triples the brightness and creates an intense beam that pierces the darkness. With C4 LED technology, your Streamlight flashlight will approximate the range and brightness of a xenon bulb. You'll also enjoy the long-run times and indestructibility of an LED with an increased level of brightness that leaves basic LEDs in the dark. Built to Last Its case is made of 6000 series machined aircraft aluminum with an anodized finish, and it has a lens made of high-temperature Borofloat glass. Other features include an anti-roll head, multi-function rubber push-button tactical tail switch, and a grooved barrel that adapts to a long gun mount. This flashlight's IPX4-rated design is water resistant. The Strion measures 5.9 inches long with a 0.95-inch barrel diameter and 1.25-inch head diameter, and it weighs 5.22 ounces with battery. Features Ultra-bright output via C4 LED technologyPowered by rechargeable batteryIncludes AC charge cordUp to 2 hours of run time (high, 260 lumens)Water resistant aircraft aluminum bodyBorofloat high temperature glass lensLimited lifetime warrantyCharger/holder available separately