The low-profile TLR RM 2 Laser Green features independently operating push-button and remote pressure switches to provide the security of knowing youll always have light. Packaged as a kit offering everything you need to mount to your long gun. Features 500 lumens and a 140m beam. Runs 1.5 hours (LED only or LED/Laser). 11 hours (Laser only). and 3 hours (strobe). Powered by two CR123A lithium batteries (included). IPX4 water-resistant.