The Streamlight 69180 TLR-VIR is a lightweight, compact, lithium battery powered weapon-mounted tactical illuminator with an integrated IR LED and the latest in visible power C4 LED technology. The light is built with shockproof LEDs. The tethered battery door and latch mechanism prevents battery door loss while providing easy battery replacement. When enabled, the strobe is activated on two or more momentary paddle hits. The rail clamp is designed to rapidly attach/detach from the side of a weapon without tools.