Go five-o with one of the most popular law-enforcement options in the world. Ultra-bright, full-spectrum xenon bi-pin bulb with deep-parabolic reflector generates a long-throw, high-peak-intensity beam. Adjustable-focus head provides spot and flood versatility. Sealed, IPX4-rated anodized aluminum housing provides splash and weather-related water resistance. Momentary/constant-on head switch enables easy signaling. Tail cap features a spare-bulb storage slot. Flashlight is compatible with a wide range of Streamlight? lamp upgrades, charger upgrades, holsters, flip lenses and more (all sold separately).