RING communications, inc. [EE] STAR Blue Strobe Light with Cover For use with : $8910, SS910, SS912, SS913, SS900A, SS900B Substations with AN912,AN912RR call in interface. ‘The strobes are made for maximum brilliance in all types of situations. Computer designed optics help penetrate rain, fog smog and snow with the finest optics of any strobe anywhere. It provides an evenly distributed 360 degree flash that fills the Fresnel lens with a full wide over square column of light.