Long Range, Gun-Mounted Tactical Light The ProTacA(R) Rail Mount HL-X Pro is a long range, low-profile, gun-mounted light that produces 50,000 candela and shines for 447 meters. Its Jack-Cap(TM) tail cap switch offers operational switch redundancy with both push-button operation or remote pressure switch operation. FEATURES: Multi-Fuel: Uses one (1) Streamlight SL-B26A(R) protected Li-Ion USB rechargeable battery pack; also accepts two (2) CR123A lithium batteries TEN-TAPA(R) programming allows for selection of three different operating programs: 1) high/strobe 2) high only 3) low/high High: 1,000 lumens; 50,000 candela; 447m beam distance; runs 1.25 hou Mfg: Streamlight