Top 8 Things You Didn’t Know About LEDs
1. A light-emitting
diode, or LED, is a type of solid-state lighting that uses a semiconductor
to convert electricity into light. Today’s LED bulbs can be six-seven times
more energy efficient than conservative incandescent lights and cut energy use
by more than 80 percent.
2. high-quality-excellence LED bulbs can
have a useful life of 25,000 hours or more -- meaning they can last more than
25 times longer than long-established light bulbs. That is a life of more than
three years if run 24 hours a day, seven days a week.
3. Unlike incandescent bulbs -- which
release 90 percent of their energy as heat -- LEDs use energy far more economically
with little wasted heat.
4.From traffic lights and vehicle brake
lights to TVs and display cases, LEDs are used in a wide range of applications
because of their unique characteristics, which include dense size, ease of
maintenance, battle to breakage, and the ability to focus the light in a single
path instead of having it go every which way.
5.LEDs contain no mercury, and a recent Energy Department study determined
that LEDs have a much smaller environmental blow than incandescent bulbs. They
also have an edge over compact luminous lights (CFLs) that’s expected to develop
over the next few years as LED technology continues its steady enhancement.
6. Since the Energy sector started funding solid-state lighting
R&D in 2000, these projects have received 58 patents. Some of the
most successful projects include budding new ways to use materials, extract
more light, and solve the underlying industrial challenges.
7. The first visible-spectrum LED was imaginary
by Nick Holonyak, Jr., while working for GE in 1962. Since then, the technology
has speedily advanced and costs have dropped tremendously, making LEDs a viable
lights solution.
8.In 2012, about 49
million LEDs were installed in the U.S. -- saving about $675
million in annual power costs. Switching entirely to LED lights over the next two decades could save the U.S.
$250 billion in energy costs, reduce electricity consumption for illumination
by nearly 50 percent and avoid 1,800 million metric tons of carbon emissions.
9.Most recently, the Energy Department announced five new projects that will focus on cutting costs by improving industrialized equipment and processes.
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