The PFB-EX incandescent red flashing 300mm beacon is specified for use on aviation obstructions. All exterior metal beacon parts are
powdercoat painted aviation yellow for corrosion resistance that meets
the US Military Standard Salt Fog Test conducted per MIL-STD-810F, Method 509.4, Procedure I. The PFB-EX beacon requires an external POC series custom controller to flash and operate as specified.