SureFire 6P LED Defender Single Output LED Flashlight Virtually indestructible, electronically regulated light emitting diode (LED) has no filament to burn out or break; lasts for thousands of hours Crenellated Strike Bezel provides enhanced self-defense capability Two 123A Lithium Batteries Maximum Output 80 Lumens Rugged aerospace-grade aluminum body with Type II anodizing in glossy black Tailcap switch: press for momentary-on, click for constant-on