Running on a single Lithium CR123 battery or a single AA battery, the Cortex Compact allows the user options given whatever power source is available. When powered by a CR123, the Cortex Compact provides 125 lumens of output, enough light to momentarily blind an aggressor's night-adapted vision. The Cortex Compact also provides a strobe mode for tactical applications, and a low-output mode for navigation. Housed within machined aluminum for strength and durability, and coated black for low visual signature when not in use, this solid 4-inch, 2.1 ounce light clips neatly inside pants pockets for quick access. The Cortex Compact flashlight is built in Portland, Oregon.