The Streamlight Strion DS HL flashlight now comes equipped with Dual Switch Technology, allowing you to select between lighting modes using the head or tail switches. It features three power settings and a strobe mode for dazzling targets, with three programs accessible from the TEN-TAP programmable switch that allow you to choose the set of available modes (high/medium/low/strobe, high/medium/low, high only). The flashlight is made from rugged anodized aircraft-grade aluminum, with a high-temperature glass lens and an anti-roll head design that keeps it in place when set down. It is tested for impact resistance at two meters, as well as IPX4 water-resistant for all weather use. The light comes with a clamp-style charger with charge indicator LEDs and digital technology that prevents overcharging. Its Piggyback design allows you to simultaneously recharge a spare battery.