Lightweight, compact, lithium battery powered Weapon Mounted Tactical Illuminator with integrated IR LED and the latest in visible power C4 LED technology. The light is built with shock-proof LEDs and provides at least 2.5 hours of continuous run time when using visible illumination mode or 20 hours when using IR illumination mode. Tethered battery door and latch mechanism prevents battery door loss while providing easy battery replacement. Strobe activated on two or more momentary paddle hits for guaranteed entry into mode.