Strion DS HLBorofloat high temperature glass. Gasket sealed 6000 series machined aircraft aluminum with anodized finish Clamp style charger holder with digital control circuit that prevents over charge 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