The ProTac 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 tail cap switch offers operational switch redundancy with both push-button operation or remote pressure switch operation. Specifications for Streamlight ProTac Rail Mount HL-X Pro Long Range Gun Light w/Remote Switch: Manufacturer: Streamlight Light Output: 1000 lumens Bulb Type: LED Battery Type: Lithium Ion Beam Color: White Color: Black Gun Model: Universal Beam Distance: 330 m Length: 5.4 in Weight: 6.6 oz, 7.2 oz Gun Make: Universal Charger Type: USB Features of Streamlight Protac Rail Mount Hl-x Pro System Switch to Low mode for 24 hours runtime Package Contents: Streamlight Protac Rail Mount Hl-x Pro System