Edwards 105 Series Xenon strobe beacons are Heavy duty visual signals suitable for use in indoor and outdoor applications where a corrosion resistant NEMA Type 4X enclosure is required. Base material is gray, manufactured from glass reinforced thermoplastic polyester resin and features brass hardware. The double fresnel lens is made of shatter resistant polycarbonate. The 105DHISTC-FJ high intensity strobe is designed for use in compatible fire alarm system and other applications requiring electrical supervision of signaling circuit field wiring.