You can easily find traffic lights on the roadside. Traffic lights are usually made up of three of four colours. They consist of three different lights, each of which has a different colour. The red light is usually the brightest. It is located on the top. The yellow light is in the middle. It is sometimes replaced by the amber light. The green light is at the bottom. It is sometimes replaced by a blue or green light. This makes the total number of lights four. They are used for controlling traffic. They are found in almost every town and city. There is barely any city or town that does not have traffic lights. They are very useful because they save a lot of money. A lot of money can be saved with the use of traffic lights. They are found in almost every intersection and turn. They have been in use for many years now. Traffic lights ain Australia were first introduced forty to fifty years ago. They were first used to control the traffic in major cities.

Rise in use:

The use of traffic lights has increased a lot over the past few years. They are found in almost all countries, as of now. They are usually made up of plastic. They consist of small bulbs that give them the colour. The bulbs are covered with a coloured plastic. This gives the lights their colours. The lights are covered with different coloured plastics. This makes each light different. There are many ways of covering traffic lights at night. They are issued waterproof. This makes them adequate for outdoor use. The pole used for building traffic lights is made of steel. Steel is very durable and hard. This is what makes it ideal for building poles. If you are interested about led magnifier desk lamp you can visit this site https://redbank.net.au/products_category/magnifiers-lamps/.

Steel poles:

The average height of a traffic light is ten to twelve feet. It can be as high as fifteen to twenty feet in some cases. Some poles are bent to one side. They are usually coated with a plastic covering to make them waterproof. Traffic lights work all day. They are powered using long cables. The cables provide the traffic lights with power. Each light is connected to a separate power source. The small bulbs in the traffic lights are powered using electricity. They work twenty four hours a day. This is because traffic lights need to be operational at all times.

Some traffic lights can be charged with solar power. Solar powered traffic lights have become very popular. This is because they are very cheap to operate. They use thirty to forty percent less electricity as compared to regular traffic lights. They are also more environmentally friendly and release less emissions. Their use has become very common over the past few years. The are usually fitted with solar cells.