Quote:
Originally Posted by MadMan
Similar street lamps are still everywhere in the US. But mercury street lighting is pretty rare. HPS is much more common. Hence why a nighttime satellite photo of any city is almost always orange. LEDs are displacing a lot of HPS though.
Though I'm not 100% sure, the suburb my shop is in has very unique and decorative street lamps and their light is very white, definitely not HPS. Probably mercury/rectified mercury. Though some of the not-decorative lights are induction fluorescent.
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Until the 1980s, most mercury lamps were also used here, from the 1980s to HPS. Now almost everything LEDs in the Netherlands. Many LPS lamps were also used here, in the U.S.A. few. I've seen this one on pictures from California. These LPS lamps start with red light and after 10 minutes bright yellow. See
https://www.youtube.com/watch?v=RiHCl1vGij8 Video plays faster. Perhaps there are more states that have used LPS lamps, but haven't seen them in old movies or photos.
Frequently used LPS fixtures in the Netherlands.
http://www.marcelstvmuseum.com/oude%...80%20Watt.html
http://www.marcelstvmuseum.com/oude%...55%20Watt.html
http://www.marcelstvmuseum.com/oude%...triumlamp.html
http://www.marcelstvmuseum.com/oude%...20vintage.html
In the Netherlands, these fixtures were most commonly used in the early years. fluorescent tubes and mercury vapor.
http://www.marcelstvmuseum.com/oude%...armaturen.html
http://www.marcelstvmuseum.com/oude%...turen%202.html
http://www.marcelstvmuseum.com/oude%...turen%203.html
http://www.marcelstvmuseum.com/oude%...turen%204.html
http://www.marcelstvmuseum.com/oude%...turen%205.html
http://www.marcelstvmuseum.com/oude%...turen%206.html