Blue sky with clouds over New York City Street Light Pole.
Old fashion silhouette of 19th century urban street light with clouds and blue sky in foreground.
Streetlighting is a critical component of any urban landscape providing illumination for circulation, ambiance, and security in outdoor environments
The first public street lighting was with gas in 1807. The incandescent light bulb had largely replaced the arc lamp as the prevailing lighting technology until newer light sources suited for the outdoors came along.