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.Features:500 lumens; 140 m beam; runs 1.5 hours; runs 3 hours on strobeFeatures independently operating push-button switch or remote pressure switchRemote pressure switch exits at 90Adeg providing improved wire routing option while preserving rail spaceSafe off feature prevents accidental activation; saves batteriesEngineered optic produces a concentrated beam with optimum peripheral illuminationSecurely attaches to long guns with MIL Standard 1913 RailsPackaged as a kit offering everything you need to mount to your long gun (remote pressure switch kit, key kit)Powered by one CR123A lithium battery (included)IPX7; waterproof to 1m for 30 minutes3.2" (8.12 cm); 2.74 oz. (77.9 g)