The rm160lsr features a high-power led that outputs 160 lumens of intense white light and a red laser sight.Light of this magnitude is enough to dominate an aggressor's night adapted vision; ideal for military, law enforcement and self-defense.The included adjustable hinge mount design is ideal for rail-equipped pistols and long guns.It does not fit subcompacts.The included cr123a battery is for the light, while the 3 lr44 is for the laser.Power Switch: On/OffWavelength: 650nMWeight: 0.50 lbsBattery: LR44Laser Color: RedFirearm Fit: Long GunsFinish: Black