
Take a look at the picture on the left. The sky bears an
unnatural shade of yellow, caused by too much artificial light. That is light
pollution in its finest – light clutter, glare, energy waste, and decreased
night visibility.
We have talked about scrolling LED signs
and its many benefits. These LED signs are made of LED lights. What benefits
are there if we replace conventional lights with LED lights?
LEDs emit light in a more directional way compared to other
light sources. LED lights that direct
all their output in one direction are more economical than either LPS or HPS
lamps. Aside from its low maintenance cost, LED lights can be dimmed if the
light requirement is also less, saving more energy and decreasing light
pollution. As LED signs can still be viewed clearly
from the distance because of fewer glares, it goes the same with LED lightings.
With more unvarying levels of light, hot spots and dark spots are greatly
reduced.
These LED lights, if grouped together, provide light to a
particular area of a street or a city during nighttime. What’s good about these
is that it doesn’t have to warm up for a few seconds. It comes on instantly the
minute you switch it on, therefore reducing wastage.
With about 35 million
streetlights in the US alone that uses conventional lights, it shows that there
is a whopping $958,125,000 electricity wastage!
These lights, compared to LEDs, does not only waste
electricity big time but also damages clarity of vision. Light that is not
directed downwards strikes the eyes horizontally, resulting in increased glare
and reduced vision. Hence, there more accidents waiting to happen.
The rise in LED light usage and the replacement of
conventional light bulbs on streetlights and buildings contributes to the
elimination of light pollution.
With its high lumen per watt consumed, zero wastage, no toxic waste or
mercury, directional lighting, longer life, low cost, low energy consumption,
and better performance in cold weather, LED lighting is dominating the lighting
technology.
And, oh! LED signs
are dominating the advertising industry as well.
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