Traffic lights are devices used in road intersections or pedestrian crossings to control vehicular traffic and hold pedestrians protected. They’re hugely beneficial for orderly and uninterrupted movement of vehicles and pedestrians in the course of heavy traffic on the roads. They play a considerable part in controlling the traffic in the course of peak hours with out a traffic policeman. Modern traffic lights came into use from the early 20th century. Get extra details about Traffic Light LED Countdown Timer

You’ll find three phase and 4 phase traffic lights in use. Generally, a traffic signal system has three lights. A green light on the bottom of your signal light stack indicates the traffic to proceed; a yellow light in the middle warns traffic to slow and prepare to quit; and also a red light on the top rated to indicate the traffic to quit.

Traditionally, traffic lights have incandescent halogen bulbs. These traffic lights consume lots of energy. They are controlled by microcontrollers. Together with the invention of light-emitting diodes (LEDs), these classic traffic lights are getting replaced with LED traffic lights. The primary positive aspects of LED traffic lights are they are brighter; they save energy and have a longer life span. They consume 83 percent less energy than incandescent bulbs. Based on size and colour, they consume amongst 8 and 25 watts of energy. But, within the case of incandescent halogen bulbs, their energy use is among 67 and 150 watts.

Most modern LED traffic lights have numerous additional positive aspects more than incandescent traffic lights. Unlike standard incandescent lights, they do not use reflectors. They may be extra visible and have higher light intensity. They’ve the ability to absorb sunlight that enters the lenses.

Until recently, implementation of LED traffic lights required heavy investment in terms of operations, reliability concerns and high fees. But with the latest technology, LED traffic lights have confirmed to become economical and also a viable solution to save energy. Traffic lights are expected throughout the day. Led traffic lights are much more efficient and save energy worth a huge number of dollars a year.