The WILD1 is lightweight, fast-activating and with two hours of run time, it's a go-to for any handgun owner. An optimal-blend of throw and spill, this compact-sized light provides a concentrated hot spot and convenient paddle activation. Made from 6061-T6 aluminum with Type III MIL-SPEC hard anodized finish for greater durability, securely attach this light in seconds to any 1913 or universal rail. Constant and momentary functions are easily activated by pressing laterally on either the left or right paddle.Features:High Output: 500 LumensPeak Beam Intensity: 5,000 CandelaDistance: 462 Feet/140 MetersHigh Runtime: Up to 2 HoursBatteries: Single 123a IncludedWeight With Batteries: 2.9 oz/83.0 gLength: 2.53 in/6.4 cmBezel Diameter: .95 in/2.4 cmSwitching: Ambidextrous PaddlesFunctions: Constant/MomentaryLockout System: Twisted BezelMounting: 1913 or Universal RailConstruction: 6061-T6 AluminumFinish: MIL-SPEC Hard AnodizeWaterproof: Up to 66 Feet/20 MetersBattery Installation:Remove light from firearm before replacing battery.Unscrew the head of the light by the bezel.Insert one CR123 battery into the light.Screw the head of the light back into place.