The ProTac Rail Mount VIR Pro is a gun-mounted tactical light featuring visible white light along with IR illumination that can easily be changed via the head-mounted switch. Features a cutoff that prevents unintentional visible illumination when operating in IR mode. It's Jack-Cap tail cap switch offers operational switch redundancy - push-button operation or remote pressure switch operation. FeaturesMulti-Fuel: Uses (1) Streamlight SL-B26 protected Li-Ion USB rechargeable battery pack; also accepts (2) CR123A lithium batteriesTEN-TAP Programming Allows for Selection of Three Different Operating Programs:1) White Light High Only/IR High Only 2) White Light Medium Only/IR High-Low 3) White Light Low-High/IR Low-HighHigh: 1,100 lumens; 40,000 candela peak beam intensity; 400m beam distance; 2 hours (SL-B26), 1.5 hours (CR123A)Medium: 540 lumens, 19,000 candela peak beam intensity; 276m beam distance; 3.75 hours (SL-B26), 2.75 hours (CR123A)Low: 120 lumens; 4,200 candela peak beam int...