You may have noticed an array of lights inside of traffic signals instead of the typical incandescent halogen bulbs.
These lights in an array or LEDs (Light Emitting Diodes) are an efficient substitute to typical incandescent halogen bulbs inside traffic lights.
Not only do they have a longer lifespan but they are much more energy efficient than incandescent bulbs.
The longer lifespan also means lower overall maintenance costs.
LED lights are highly efficient when it come to energy consumption.
Lower energy consumption decreases the energy cost and reduces the environmental impact of greenhouse gas emissions from power plants.
To give you an idea, the power consumption of LEDs can be anywhere between 10 Watts to 22 Watts, while an incandescent bulb consumes 135 Watts.
A typical city with many traffic signals can see savings in millions a year by swapping the incandescent bulbs with the latest LED units.
With these savings, there can be an opportunity of using solar panels instead of electricity to generate power for the LED units for an even greater reduction of greenhouse gas emissions.
Typical incandescent halogen bulbs last for a few months and the constant replacement carries a great financial toll.
Traffic has to be stopped while the bulbs are being replaced.
It costs a great deal of money to hire the repair people and trucks every time the traffic bulbs need to be replaced.
Also, the replacement intervals are short when compared to LED units.
Incandescent bulbs have only one tungsten filament and once that filament burns out, the bulb no longer works and requires immediate replacement.
On the other hand, a LED traffic signal light is made out of an array of several dozens of LED lights and if few do stop working, the traffic signal will still continue to function.
The advantages in energy consumption and operational maintenance costs of LED traffic signals outweigh the typical incandescent traffic signals.
As a result many cities and town are choosing to go with LEDs for their traffic lights.
These lights in an array or LEDs (Light Emitting Diodes) are an efficient substitute to typical incandescent halogen bulbs inside traffic lights.
Not only do they have a longer lifespan but they are much more energy efficient than incandescent bulbs.
The longer lifespan also means lower overall maintenance costs.
LED lights are highly efficient when it come to energy consumption.
Lower energy consumption decreases the energy cost and reduces the environmental impact of greenhouse gas emissions from power plants.
To give you an idea, the power consumption of LEDs can be anywhere between 10 Watts to 22 Watts, while an incandescent bulb consumes 135 Watts.
A typical city with many traffic signals can see savings in millions a year by swapping the incandescent bulbs with the latest LED units.
With these savings, there can be an opportunity of using solar panels instead of electricity to generate power for the LED units for an even greater reduction of greenhouse gas emissions.
Typical incandescent halogen bulbs last for a few months and the constant replacement carries a great financial toll.
Traffic has to be stopped while the bulbs are being replaced.
It costs a great deal of money to hire the repair people and trucks every time the traffic bulbs need to be replaced.
Also, the replacement intervals are short when compared to LED units.
Incandescent bulbs have only one tungsten filament and once that filament burns out, the bulb no longer works and requires immediate replacement.
On the other hand, a LED traffic signal light is made out of an array of several dozens of LED lights and if few do stop working, the traffic signal will still continue to function.
The advantages in energy consumption and operational maintenance costs of LED traffic signals outweigh the typical incandescent traffic signals.
As a result many cities and town are choosing to go with LEDs for their traffic lights.