The Streamlight ProTac HL-X Rail Mount is a weapon-mounted light that produces 1000 lumens with a beam distance of 447 meters. This lightweight accessory is constructed from black anodized aluminum and features a Jack-Cap tail switch for operational redundancy, allowing push-button or remote pressure switch operation.Key FeaturesLumens: Produces a maximum output of 1000 lumens.Beam Distance: Offers a beam distance of 447 meters.Battery Options: Compatible with two CR123A lithium batteries or one SL-B26 USB battery pack.Ten-Tap Programming: Allows the operator to select from three operating modes: High/Strobe, High Only, and Low/High.Material: Constructed from durable black anodized aluminum.