A compact flashlight with dual output as well as some enhancements for self-defense purposes the SureFire E2D LED Defender Ultra Flashlight - Dual Output 500 Lumen is loaded with features. It has a rugged LED emitter that is regulated to make the most of output and runtime.A push button on the tailcap of the flashlight activates it and there are intensity options for the flashlight with a maximum output of 500 lumens. It is made from super strong aluminum and it is hard enough to be used as a weapon. It has an integral Picatinny mount that can be installed on a firearm in a matter of minutes.