The TLR RM 1 features independently operating push-button and remote pressure switches 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. Product Features 500 lumens; 140 m beam; runs 1.5 hours; runs 3 hours on strobe Features independently operating push-button switch or remote pressure switch 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 IPX7; waterproof to 1m for 30 minutes