FIXED WING LED BEACON/14V 7090004FIXED WING LED BEACON/14VMODEL 7090004 - MODELS 7090004 & 7090005 are designed to replace existing light assemblies with the 3-3/4 dia. mounting pattern. (Ref. Whelen HRCFA series, 90081 Series, and old style rotatingbeacons). Same mounting hole pattern, no modificat..