Streamlight Streamlight 88066 Pro Tac Rail Mount HL-X, 1,000 Lumen Professional Tactical Flashlight with High/Low/Strobe Dual Fuel use 2X CR 123A or 1 x 18650 Batteries - 1000 Lumens

The Streamlight 88066 ProTac Rail Mount HL-X is a 1,000-lumen weapon-mounted light featuring a rail clamp designed to rapidly and securely attach/detach from rifles, carbines, and submachine guns with a MIL Standard 1913 Rail. It uses either a remote switch with momentary/constant on operation or a standard push-button tail switch, and can run on either two CR123A lithium batteries or one Streamlight rechargeable 18650 battery.