Features and Benefits:�1,000 lumens and 374 meter beam on High�Switch to Low for 20 hours of runtime�Battery versatility - use micro USB port or disposable lithium batteries�High/Medium/Low/Strobe modes�TEN-TAP Programming to choose your preferred operating mode�Anti-roll head prevents it from rolling away when you set it down�Durable aluminum construction and IPX4 water resistantThe Pro Tac® HPL USB is a versatile tactical light that can charge from multiple sources and use three battery types; Streamlight P/N 74175 rechargeable lithium ion battery, two CR123A batteries, or Streamlight® SL-B26™ protected Li-Ion USB rechargeable battery pack (see Battery detail below). This light will charge from a laptop or most USB wall chargers. Multi battery versatility means you can always use primary disposable cells to power the light when a charging source is not available. Designed for use in all markets, it features a tail cap switch for momentary or constant on operation, three different user selectable programs and a pocket clip for convenience. The aluminum housing with Type II Military Spec anodizing helps make the light extremely durable and abrasion resistant. Packaged with a removable pocket clip and holster. Available in Black.