Federal Signal 462121-02 Renegade Strobe Beacon, Class 3, Permanent/ 1/2" Pipe Mount with Amber Dome 2.2J, 12-48 VDC, double flash Fesnel lens redirects light for maximum visibility Specially designed O-ring gasket seals out moisture SAE J845, Class 3 approved Three-year product warranty Double Flash; 75 Flash Per Minute^Permanent, 1/2" pipe mount^Versatile base for universal mounting^3 Year Warranty^Approval SAE J845, Class 3