Werma signaltechnik rotating mirror beacon werma signaltechnik 88531075 the werma signaltechnik 88531075 is a rotating mirror beacon that is probably considered the traditional type of warning beacon as the mirror revolves around the lamp an intense beam of light is projected this then provides a warning signal capable of cutting through smoke and dust laden atmospheres and can command attention even when someone is standing with their back to the beaconthis highly visible beacon has