The Barska FLX 800 LED Flashlight is a compact white LED flashlight with a maximum output of 800 lumens. It has a continuous runtime of 2.2 hours with a single battery and an option of three brightness settings for various lighting conditions. The flashlight is also designed to be durable with a water resistant and fogproof aluminum construction. Other options available to you are strobe and SOS modes for use in emergencies in order to signal for help or disorient an intruder. This flashlight also comes with a standard Picatinny rail mount, allowing for attachment to any Picatinny rail system.