The ProTac Rail Mount HL-X is a weapon-mounted light with 1,000 lumens and dedicated fixed-mount for MILSTD 1913 rails. Its Ten-Tap programming allows you to choose one of three modes of operation: high/strobe, high only, low/high. The light is constructed of aluminum with an anodized finish, integrated rail clamp and a TIR optic which produces a concentrated beam with optimum peripheral illumination. Included are two CR123A lithium batteries, remote pressure switch, push-button tailcap switch, remote retaining clips, double-sided tape and zip ties.