Adaptability is part of life for the modern day tactical professional. The Cortex Flashlight is built with adaptability in mind. Running on either three (3) Lithium CR123 batteries or two (2) AA batteries, the Cortex can utilize multiple power sources when having options is critical. With a maximum output level of 675 lumens (when running on three CR123 batteries), the Cortex provides a level of light useful for overwhelming an aggressor or identifying a threat. The Cortex also offers a strobe mode for tactical applications and a low output mode for administrative duties. Proudly built in Portland, OR.