Strobe 360 Beacons - Series 22.0200 - Effectively warns motorists of hazards and signals drivers to yield right of way. Choice of strobe models with 4" or 6" high-impact fresnel lenses in amber, blue, clear, green, red or violet. Strobe models have an output of 19.2 joules with a flash rate of 60 quad FPM. Choose single threaded center bolt mount, flush mount, or magnetic mount. (Pipe mount model also available for an additional charge.) Durable polycarbonate base and rubber gasket. All models have a diameter of 6-1/8" with either a 6-1/4" (4" Lens) or 8-1/4" (6" Lens) overall height. 12" pigtail wiring on all permanent models. (Switch sold separately.) magnetic models come with a switched adapter plug on a standard 10' straight cord. Coiled cord available for an additional charge. Made in the U.S.A.