The brightness of a larger light in a compact size that can be comfortably used with a firearm. * Two 3 volt CR123A lithium batteries with a storage life of 10 years (included) * High-pressure xenon gas-filled bi-pin bulb * Up to 7,900 peak beam candlepower (78 lumens) * Adjustable focus * Spare bulb included * 1.3 hrs. continuous run time * Pocket clip, adjustable lanyard * Head: 1.25;" Body: .9" x Length 4.9" * 4.2 oz. with batteries * Shock-Proof model available. Designed to withstand even the punishing recoil of a 3" 12 gauge magnum slug. * Available in black