The SureFire Dual Fuel Scout Light® Pro w/z68 tailcap, rifle-mounted weapon light's low-profile mount allows optimum light positioning; ideal for use with other rail-mounted accessories.Features up to 1,500 lumens of white light for close to long range tactical applications with the *sf18650b rechargeable lithium-ion battery; delivers 1,200 lumens of blinding white light with 123a batteries; its total internal reflection (tir) lens shapes the beam for plenty of reach and ample surround light; constructed of lightweight aerospace aluminum; mil-spec hard-anodized and o-ring sealed to keep out the elements.The lpm easily and securely attaches to any mil-std-1913 or m-lok rail.*note-sf18650b battery required for 1,500 lumen output.