Streetlight
A streetlight is a light bulb on a pole used for lighting streets. Streets can be lit for safety or visibility reasons, so people can see where they are walking at night. Streetlights are normally either orange or blue. The blue ones are mercury-vapor lamps. They are older and last longer. The orange ones are sodium vapor lamps. They are newer and more efficient.
Streetlight Media
- Bright Street light.jpg
Street light
Detail of a street light from Paris
Detail of a street light with Cupid, at the Austrian Parliament Building (Vienna)
William Murdoch's house in Redruth, UK, the first domestic house in the world to be lit by gas
Streetlights from an 1871 catalog
Demonstration of Yablochkov's arc lamp on the Avenue de l'Opera in Paris (1878), the first form of electric street lighting
Heritage lamp post in the City Botanic Gardens, Brisbane
Map of Tamworth, New South Wales, showing the position of leads and lights along the network of city streets in 1888
The distinctive monochromatic yellow glow from a low-pressure sodium lamp in the UK
.jpg)
Related pages
- Incandescent bulb, rarely used in streetlights
- Fluorescent bulb
