The advantages of LED lighting are not only that it
can save the electricity bills and environment friendly, but also it can save
replacement and maintenance cost since it has much longer lifespan.
The foreseeable of Industrial and domestic purpose
lighting will very soon be the vast distributed adopting and utilize of green
energy-saving LED lights. The upsides of LED lighting will raise demand
for more cost-effective LED lights. SSL (Solid-State-Lighting) is an
interesting field and it’s been forecasted, that soon, energy-saving LED
lighting products are going to be reliable and affordable sufficiently to
replace incandescent and fluorescent lights for common use in our Industries, homes,
in public places, in car parking lots, in street lights, in super markets, in
shopping malls and offices.
The working lifespan of current LED lamps is 100,000
hours theoretically. This will be more than 10 years of continuing
running, or in another calculation, say 33.3% operation (that is 8 hours per
day), 34 years of lifespan. The long operational life of an LED light is great
advantage compared to an incandescent bulb or a fluorescent tube, which is
approximately 4000-6000 hours.
With incandescent lamps, the true and hidden cost is
the electricity bills (electricity usage for light as well as to remove heat
through HVAC Systems, generated by Incandescent lights) and the maintenance fee
(including the replacement bulbs and the labor fee). When comes to the
Industrial & commercial sector, for example, Industries, Oil & Gas
fields, Refineries, for shopping malls, car parks, office buildings and high-rises,
maintenance costs for replacing the light bulbs or light tubes, can be
significant. While LED lights here could be a perfect solution.
As soon as developed efficiently, an LED circuit
will probably come to 70-80% efficiency that indicates 70-80% of the energy has
been converted to light rather than other forms of energy such as heat.
While for incandescent bulbs, only 10- 20% of electricity is used to
generate light, at the same time, 80-90% of electric power has been wasted to
generate heat. Take a simple example, say if, in a room, someone light up with
a 100 Watt incandescent bulb (8 hours per day), and the electrical fee is
10cents/kilowatt hour, then for 1 year, electrical cost for this bulb
would be $29 expense, but $23-$26 of this $29 will be spent to heat the
room, only $3-$6 is actually devoted to light the room. And if an efficient LED
light is used, the energy fee would be only about $7-$8 yearly – 70%-80% saving
on electricity each year. Please have in mind that the savings on
maintenance and replacements during the next years has not been counted yet,
which completely makes Incandescent lighting out of options.
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