The Beamshot Tactical light This Tactical light fits all the Beamshot mounts. This LED Tactical Light will fit Pistols, Revolvers, Rifles, Shotguns, Cross Bows, and Compound bows with our custom mounts. 8 Lumens output, Uses (2)CR123 3v lithium battery for 20 hours of continuous use or much longer intermittently. Average 2-3 year battery shelf life.