What are the benefits of LED traffic lights?

At the next stop at the intersection, take a closer look at the shining red light. If it looks like a honeycomb of bright red dots, you enjoy an example of LED traffic lights. Cities around the world systematically replace their older traffic signals based on bulbs for more energy -efficient LEDs since the mid -90s. These traffic signals have several advantages over bulbs, but these three main advantages are improved by visibility, longer life and lower energy costs. LEDs generate light due to passing electric current by certain gases. Initially, LEDs could only produce red color, which reduced their use to monochrome devices such as alarm displays or calculators. Further clarification in technology has now created three colors used for traffic signals: red, amber and green.

One of the main advantages of these traffic lights is increased visibility. The bulbs were often covered with colored filters, reflectors and glass lentilsMi, which could affect how much light actually reached the eyes of drivers. LED traffic lights use a number of bright LEDs that do not require additional filters or amplification. If a single bulb burns, the entire light sequence is disturbed. Several LEDs may fail in these lights without causing noticeable disruption. A catastrophic failure involving all LEDs on the panel would be really rare.

Another advantage is lower maintenance costs. Almost all LED traffic traffic lights are predetermined - LEDs are expensive and signals require more work to produce. These expenses are usually compensated by lower maintenance costs. If the burning bulb, which Happe burns on average three times a year, the trained city employee must replace the bulb while the traffic is diverted. LED lights, on the other hand, may only require annual cleaning of protective lenses. Individual light panels often insist ten or moree years, depending on the conditions.

In the related note is another advantage of LED traffic lights to evident energy savings. The standard bulb can use 100 watts of electricity to make light, but the equivalent LED panel uses 15 to 20 watts to achieve the same intensity. Given how many thousands of bulbs must be lit around hours, it is easy to understand why ice is so attractive to cities in tight energy budgets. Larger cities can save a considerable amount of money by switching to LED transport systems. Some cities that have converted still maintain amber light bulbs because it does not remain illuminated as long as green and red signals.