Ballon Generali diameter of . It has been used as advertising billboard for Fortis, then from 2002 for Eutelsat. In 2008, a partnership has been signed with Banque populaire and Airparif : renamed "ballon Air de Paris", its internal illumination system changes the outer colour in real-time, according to the ambient air pollution in Paris, measured by Airparif : from green (good) to red (bad) through orange (poor). This system was completed by an independent lighting (panels light-emitting diode, visible especially at night on the lower part of the shell) stating the air quality near traffic with the same colour code. On
Whitefish Point Light had two unevenly spaced eclipses, and two flashes within every 20 second period. Putting aside questions of nostalgia, aesthetics, or appreciation for the engineering of a bygone era (as exemplified by the Fresnel lens), this iteration of lighthouse illumination was itself incredibly effective, and an endangered remnant of another bygone era. The station was automated in 1971. In 2011, the U.S. Coast Guard Local Notice to Mariners reported reduced intensity of the Whitefish Point light from June 7, 2011 until August 16, 2011, when the DCB-224 Series Carlisle & Finch aerobeacon lens was changed to a light-emitting diode (LED) lantern