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<Electricity
Savings><Overall Savings><Safety><How
They work><Beauty>
Foreverbright lights wont burn out or break for twenty
years!
These patent pending light strings look similar to conventional
miniature lights, but the similarities stop there. As their name
implies, Foreverbright lights are rated for up to 200,000
hours of use - or almost 23 years.
Electricity Savings
Foreverbright lights achieve high brightness with only a small
fraction of energy. Instead of consuming about 50 Watts per string
of 100 (conventional mini-lights), Foreverbright lights use
only a few Watts of power. The 80-90% savings in electricity quickly
adds up. Each string can save dollars per month, as the following
chart shows:
 
For example, if five light strings are used 8 hours a day, and the
electricity rate is only 8 cents (national average), Foreverbright
lights will save 5 dollars every month. Go
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Overall Savings
Foreverbright lights may initially cost slightly more than
conventional lights but they more than pay for themselves within
a single season. With typical seasonal usage, and assuming that
conventional lights are replaced every 2 years, the following dollar
savings chart results:
 
For example, with 5 light strings, and again only the national average
rate for electricity (8 cents), Foreverbright lights save
$150 in five seasons! Go
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Safety
Foreverbright lights are unbreakable, constructed of
solid flameproof epoxy plastic. They also operate much cooler than
conventional lights, making them safer to use either indoors or
out. Patent pending circuitry allows them to be plugged directly
into a household power outlet (120 VAC), without bulky transformers
or other heat producing components. They can be used interchangeably
with conventional lights.
With all of these features, customers won't have to ever throw Foreverbright
light strings away. In fact, because they use so little power, customers
will most likely continue to find more and more uses for additional
light strings over time. Go
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How They Work
Foreverbright lights use Light Emitting Diodes (LEDs), now
considered "the greatest invention in lighting since Edison's
light bulb in 1879." LEDs are rapidly replacing light bulbs
in a variety of high reliability applications, including traffic
lights, brake lights, and emergency exit signs.
LEDs are constructed from tiny solid-state chips similar to those
used in computers. These chips directly convert electricity to light
without the use of a filament or glass bulb. Instead, the chips
are encapsulated in solid plastic that can be made into a variety
of shapes and sizes. Basic differences between conventional light
bulbs and LEDs are shown as follows:

Since LEDs have no filament, there is nothing to burn out and no
need for a breakable bulb. Without the burning filament, very little
heat is produced.
The principle
behind LEDs, while complicated, can be made easy to understand.
An LED is a special type of diode and is similar to a transistor.
Diodes and transistors are "solid state" devices that
are made from semiconductors such as silicon. The semiconductor
is made to contain two types of special impurities. The first type
of impurity, called "N" for negative, is a material with
an excess of electrons. The other type of impurity, called "P"
for positive, has a deficiency of electrons in "holes."
These two kinds of impurities are dispersed into the semiconductor
at different regions, so that a "P-N junction," or active
layer, is created at the border.
Semiconductors
do not freely conduct electricity like materials such as copper
but, instead, they can be made to conduct electricity under certain
conditions. For diodes and transistors, this amounts to connecting
electric power across the junction to make the "P" side
more positive and the "N" side more negative. When this
happens, electricity flows freely across the "P-N junction"
and the electrons fill up the holes. The laws of physics describe
the energy between electrons and holes, and show that this energy
is a fixed amount, depending on the materials. LEDs differ from
ordinary diodes in that the "P" and "N" materials
take this energy and convert it to photons, or light. Since the
energy involved is a fixed amount, the light that results has only
a single wavelength, or color. Using different materials for the
"P" and "N" impurities enables the light to
be manufactured in different colors.
The first LEDs
were introduced by General Electric in 1962. These LEDs came only
in red, the lowest energy of all visible light colors. In the 1970s,
yellow and green were introduced, along with intermediate colors
such as orange. But back then the materials used were inefficient
- very little light was produced for each Watt of electric power
used. Conventional light bulbs are also very inefficient, yielding
at best only about 6% of their electric power used in the form of
light. The rest of this power turns into heat, as one finds out
quickly when touching a lighted bulb. Over the years, LED efficiency,
brightness, and lowered cost have exploded in parallel with computer
components. Today, LED power efficiency surpasses that of a fluorescent
and is increasing, with 75% efficiency on the horizon. This growth
in LED efficency is shown in the following figure, where yellow
and orange are similar to red:
 
Costs have plummeted such that bright red, yellow, green and intermediate
colors are now pennies apiece. With the introduction of blue in
the 1990s, LEDs now come in a full palette of colors, including
pure white. Blue and white are presently too expensive for most
applications, costing dimes instead of pennies each, but this should
change within a few years.
LEDs have also
evolved to last much longer. Today, LED lifetimes are not specified
by a time to burnout because it simply takes too long to measure.
Instead, LED lifetime is specified at time when a barely noticeable
loss of light occurs. This lifetime is about 100,000 hours, or more
than eleven years of time. If the LED is off for any portion of
time, then this lifetime increases. Conventional light bulbs are
typically rated at about 1000-2000 hours or so before they burn
out. But even this rating assumes that the light bulbs are not turned
off and on, and that they are not jarred in any fashion. Anyone
familiar with Christmas light strings is experienced with burnout.
Foreverbright
lights are built with patent pending circuitry to maximize efficiency
of their LEDs. This revolutionary design concept eliminates the
use of traditional components that add to cost and generate heat.
While details are proprietary, in essence the circuitry allows the
LEDs to flash on and off with AC power. Like a television set, the
flashing occurs sixty times per second and is invisible to the eye.
By flashing the LEDs on and off this way, the circuit can be made
at least twice as efficient as is possible with traditional LED
circuitry. In addition, the overall LED lifetime is more than twice
as long, since the LEDs are off more than half of the time. Unlike
conventional light bulbs, particularly fluorescent bulbs, switching
LEDs off and on does not affect their longevity. The result is a
cheaper, safer, and longer lasting product with less power consumption
than could otherwise be designed. Lifetime is predicted to be over
twenty years of continuous use, and much longer if just used seasonally.
Go
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Beautiful
Design
At
first glance, the flameproof bulbs in Foreverbright lights
look like bright conventional miniature light bulbs. A closer examination,
however, reveals that Foreverbright lights have slightly different
shape. This shape has facets that create a unique shimmering effect,
with different light levels when viewed at certain angles. The result
is striking, particularly as the lights shimmer in the breeze outdoors
or one walks around the tree or other object being lighted indoors.
This latest
development in decorative lighting technology promises to change
the way people decorate their homes, businesses, and even towns
for many years to come. Less power consumption, longer product life,
and durability without the hazards of excess heat build-up should
make the holiday season brighter, safer, and ecologically more sound.
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