The SIG SAUER STOPLITE(TM) is designed to operate as a standalone flashlight as well as attach to an accessory rail or double as a rifle vertical grip. It features a strobe function which acts as a personal defense tool by disorienting the assailant. The light also features a fixed red laser aiming module and a built-in power receptacle. The power receptacle can drive a variety of optional interchangeable digital accessories. The STL-300J STOPLITE uses four CR123 batteries and features a 700 lumen LED with a four(4) position switch (Momentary, Steady, Off and Strobe).