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An electric light, lamp, or light bulb is an electrical component that produces light. It is the most common form of artificial lighting . Lamps usually have a base made of ceramic , metal, glass, or plastic which secures the lamp in the socket of a light fixture , which is often called a "lamp" as well.
Low-pressure sodium lamps are highly efficient electrical light sources, but their yellow light restricts applications to outdoor lighting, such as street lamps, where they are widely used. [1] High-pressure sodium lamps emit a broader spectrum of light than the low-pressure lamps, but they still have poorer color rendering than other types of ...
High-mast, usually pole – or stanchion-mounted – for landscape, roadways, and parking lots. Bollard – a type of architectural outdoor lighting that is a short, upright ground-mounted unit typically used to provide cutoff type illumination for egress lighting, to light walkways, steps, or other pathways. Solar lamp; Street light; Yard light
This indicates that near to this lighting pole or in the same intersection, there is a fire alarm pull box. [92] Other street lights have a small red light next to the street light bulb; when the small light flashes, it indicates an issue with the electric current. [93]
[18] The city replaced 120-watt bulbs which lasted only two years with 56-watt LEDs that would last a decade, and expected to reduce its public lighting energy use by half. [18] However, for the first two years, DTE Energy continued to bill Ann Arbor at the same rate as before, because the street lights were not metered, and electricity charges ...
Strong poles are necessary to all street lights, especially to solar street lights as there are often components mounted on the top of the pole: fixtures, panels and sometimes batteries. However, in some newer designs, the PV panels and all electronics are integrated in the pole itself. Wind resistance is also a factor.
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