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What else can I help you with?
Which is the metal vapours used in yellow street lights?
Sodium vapour.
What alkali metal is used in street lights?
Sodium (chem symbol = Na) Mercury vapor is also used in street lights. Low pressure sodium vapor street lights are amber/yellow in color, high pressure sodium lights are white and mercury vapor lights glow blueish white.
Are metal halide street lights an environmentally friendly option?
Yes many people believe that metal halide street lights are environment friendly. Here are some sites about these lights. www.fairfaxcounty.gov news releases 2009 , enduraliteled.ca/municipal
What is used for street lights in big cities?
led
Where can I get more information online about metal halide street lights?
Yes you can get more information on line about metal halide lights at the following sites. Here are some sites you can look at www.eskimo.com/~jrterry/lampspage.html
How are streetlights placed and what type of lamp is used for them?
Which lens is used in street lights? Convex mirrors are used as reflectors in street lights because they are able to spread the light over a wide area.
Who created street lights?
Street lights date back thousands of years. As early as the 4th century Antioch had street lights. Street lights were also used in the 9-10 centuries by the Arab Empire. In 1417 in London Henry Bastien ordered lanterns to be hung on winter nights and by 1792 William Murdoch had installed gas lights in London. In the United States Ben Franklin helped with street lights and by 1816 Baltimore was the first city to have street lights.
Who created the street lights?
Street lights date back thousands of years. As early as the 4th century Antioch had street lights. Street lights were also used in the 9-10 centuries by the Arab Empire. In 1417 in London Henry Bastien ordered lanterns to be hung on winter nights and by 1792 William Murdoch had installed gas lights in London. In the United States Ben Franklin helped with street lights and by 1816 Baltimore was the first city to have street lights.
Who created the first street light?
Street lights date back thousands of years. As early as the 4th century Antioch had street lights. Street lights were also used in the 9-10 centuries by the Arab Empire. In 1417 in London Henry Bastien ordered lanterns to be hung on winter nights and by 1792 William Murdoch had installed gas lights in London. In the United States Ben Franklin helped with street lights and by 1816 Baltimore was the first city to have street lights.
Why photocells used in automatic street light?
Photocells are used in automatic street lights to detect ambient light levels. When it gets dark, the photocell detects the decrease in light and triggers the street light to turn on. This helps in energy conservation by ensuring that the street lights are only on when needed.
When were street lights first used?
The first street lamps are said to be used in London but the fact of the matter is that the were actually first used in South Africa in Kimberly.
Which type of mirrors are used in street lights?
Concave mirrors are typically used in street lights. These mirrors help to gather and reflect light in a controlled manner, directing the light downwards to illuminate the street below and increase visibility for drivers and pedestrians.
