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Several lighting systems exist nowadays in the
market, but the most important that LED has to compete with in
artificial lighting systems, are the halogen and the fluorescent
lights. The LED is a relativy new and unknown product in
this field compared to others more known in the market. So that, we
have made up this comparison with its most strong opponents (halogens
and fluorescents), in order to evaluate more easily its features
and to understand why it will become the most used system in a
near future.
LED Advantages:
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Low consumption: A LED lamp is
supplied in low voltage, and consums few power supply.
Example: An halogen of 50W
lights 25 lumens/W achieving a total of 1250 Lumens. To
obtain the same lighting with a LED lamp, we need 179 LEDs (using
high intensity LEDs of 7 lumens/unit), by this way we will have
the same lighting with both lamps, but with our lamp the consumption
will be 4 times lower: just 13W. (*Estimated data)
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Low voltage: All our
products have 24V of continuous power supply, and
adapt perfectly to the majority of all the power sources,
reducing to the minimum the risks of electrocution.
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Low temperature: The LED is
powered with low tension, so consuming little energy and
therefore emiting little heat. That is owing to the fact that
the LED has a device which works by low temperature
related to the provided lighting. The other lighting
systems with the same lighting features as the LED, emit much more heat.
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Small spectral width: LEDs have a
small spectral width, turning them into the perfect lighting
system for artificial vision, because in that way the camera
takes the object with more detail, having a better vision
of its possible defects.
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Wide spectral band:
The LED is a fix wavelenght device but it can work
in a wide band of the spectrum.
To cover all this
width of band, a huge range of LEDs exits in the market which
allows us to light with a specific wavelenght, or what is the
same, with a certain colour (red, green, amber, white and
even ultraviolet.)
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Higher speed of answering: The LED
has a quicker work answer than halogens and
fluorescents, (microseconds for instance), what is ideal to
work with a strobe system, increasing the features of this
strobe.
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Brighter light: With the same
lighting conditions that its rivals, its light is much brighter and
clearer.
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With no lighting faults : It
absorbs the possible vibrations which the set could have
without the production of faults or variations in lighting.
That is because the LED has no luminescent filament and that
avoids its lighting variations and its possible breakage.
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Longer life and reliability: The
life of a LED is longer than other systems of lighting:
|
Life
average |
Hours |
|
LED |
100.000 h. |
|
Fluorescent
|
20.000 h. |
|
Halogen |
4.000 h. |
|
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And
its reliability is much bigger because the degradation of light is lower
than halogens and fuorescents:
|
Loss of
lighting |
-20% |
-30% |
|
LED |
45.000 h. |
100.000 h. |
|
Fluorescent
|
5.000 h. |
20.000 h. |
|
Halogen |
1.500 h. |
4.000 h. |
|
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*Data provided by the best lighting trades of the
market.
LED
disadvantages:
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Price: The greatest problem of the
LED is its price, but if it's evaluated its several and
excellent work conditions, above all its long life compared to
the rest of the lighting systems, we can reassure that it's the
most sensible, efficient and profitable investment we can do.
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