Nightstick Tcm-30 Tactical Weapon-mounted Light 650 Lumens 2 Hour Run Time Ip-x7 Waterproof Matte Finish Black The Nightstick TCM-30 is a tactical weapon-mounted light that outputs up to 650 lumens of brightness and has a run time of up to 2 hours, depending on the power mode used. The light features an IP-X7 waterproof rating, meaning it can withstand being submerged in water for up to 30 minutes at a depth of up to 1 meter. The light has a matte black finish and is designed for tactical use. The TCM-30 is powered by two CR123A batteries and features a momentary or constant-on switch for easy activation. It also features a low battery indicator to alert the user when the batteries are running low. The light is easy to install and remove with the included mounting system, and the design allows for easy access to the on/off switch without compromising the grip of the firearm.