The ProTac® Rail Mount HL-X Pro is a long range low-profile gun-mounted light that produces 50000 candela and shines for 447 meters. Its Jack-Cap tail cap switch offers operational switch redundancy with both push-button operation or remote pressure switch operation. – Multi-Fuel: Uses one (1) Streamlight SL-B26® protected Li-Ion USB rechargeable battery pack; also accepts two (2) CR123A lithium batteries – TEN-TAP® programming allows for selection of three different operating programs: – 1) high/strobe 2) high only 3) low/high – High: 1000 lumens; 50000 candela; 447m beam distance; runs 1.25 hours (CR123A); runs 1.75 hours (SL-B26) – Low: 60 lumens; 3100 candela; 111m beam distance; runs 21 hours (CR123A); runs 24 hours (SL-B26) – Strobe: runs 2.5 hours (CR123A); runs 3.5 hours (SL-B26) – Available as Light Only or System – System includes remote pressure switch Jack-Cap tail switch remote retaining clips double-sided tape zip ties and M-LOK® mount – Integrated rail clamp attaches to MIL-STD-1913 (Picatinny) rails – Easy to attach secure mounting – Durable anodized aluminum construction with impact-resistant tempered glass lens – IP67-rated; waterproof to 1 meter for 30 minutes (without remote pressure switch installed); IP54-rated; water-resistant (with remote pressure switch installed) – Limited lifetime warranty – PROTAC RM HL-X PRO LIGHT ONLY – Includes Jack-Cap M-LOK Kit 2.5mm Allen Wrench 2 CR123 Batteries