Streamlight TLR RM 1 Long Gun Rail Mounted Tactical Weapon Light With Red Laser - Black - The TLR RM 1 Laser features independently operating push-button to provide the security of knowing you'll always have light. Packaged as a kit offering everything you need to mount to your long gun. White LED illuminator and integrated 640-660nm red laser; 500 lumens; 140m beam rRuns 1.5 hours (LED only or LED/Laser); runs 60 hours (Laser only); runs 3 hours (strobe); Mode selector toggle switch for Laser only, Light only or Light/Laser combo; Safe off feature prevents accidental activation; saves batteries; Engineered optic produces a concentrated beam with optimum peripheral illumination; Securely attaches to long guns with MIL Standard 1913 Rails; Packaged as a kit offering everything you need to mount to your long gun (key kit only); Powered by one CR123A lithium battery (included); IPX4; water-resistant; 3.20in (8.12cm) L x 1.18in (2.98cm) W x 1.50in (3.81cm) H; 2.97oz (84.2g);