Light emitting diodes (LEDs) are a digital light source. LEDs started life as light indicators in electrical components synthesized by Hewlett Packard. The LED light is a product of electrons producing energy in the form of photons also known as electroluminescence.
Originally their cost limited their use as an everyday light source. However ever-increasing energy prices combined with improved manufacturing process has made (LEDs) a viable alternative to Thomas Edison's invention.
(LEDs) energy efficiency, low maintenance, robustness and long life mean that they are now a bright alternative to the energy-hungry and delicate analogue light sources we all grew up with.
Nowaday they are used in televisions, traffic lights, car headlights, torches and signboards across the globe.
Why should I be using LED lighting?
• LEDs use less energy. The first and foremost reason for using LEDs is that they can consume up to 85% less energy than traditional lighting. Less energy consumed is good for the environment but it is also good for business too. Less power usage equals more money saved.
• LEDs last longer. The average age for a LED light is 10 years. Even then they will only need replacing as their light fades. Over a long period of time their light output gradually dims. They can last longer too; it depends upon the application.
• LEDs are much safer - LEDs use low voltage (12-24) volts and are less of a fire risk than light bulbs and particularly neon lighting. LEDs emit no UV and very little heat so they can be used in areas where too much heat is dangerous.
• LEDs are easier to maintain. LEDs can be left alone and a quick wipe over once in a while is all they need.
• LEDs are solid state. There is no filament or glass to break and they are robust even in wet conditions. They can even be used underwater in some circumstances.
• LEDs are easier to dispose of. Although there is no real way to recycle them at the moment they are tiny and therefore easier and less damaging to the environment than disposing glass bulbs and gas-filled tubing.
• LEDs are much, much smaller. They can therefore be used in much more creative ways than traditional lighting. For example lightboxes can be slimmer, LEDs can be even be embedded into acrylic panels for certain applications.
I've heard it is more expensive?
Initially LEDs can be more expensive than traditional light bulbs and fluorescent tubes but their benefits more than redress this. Businesses face energy audits and a commitment to reduce their carbon emissions, never mind the need to cut costs. LEDs are part of the answer to these issues.
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