Surefire HL1-C HelmetLight - Multiple-Output Helmet LED Light - 2011 Model (White/Red/Infrared) HL1-C-TN Tan Made of durable glass-filled nylon polymer and neoprene O-ring sealed, watertight body Two toggle switches and a pressure switch for total control White and red LEDs and infrared IFF LED beacon Long runtime from a single 123A battery with 10-year shelf life