LEDs: Its Begining Of End For The Traditional Light Bulbs

Incandescent light bulb


In the beginning, there was darkness.

Then came fire.

It wasn’t until the 19th century that artificial light was first generated. The big leap came in the 1880s, when Thomas Edison lit homes with the incandescent bulb. Since then, for the next 130 years, incandescents ruled the nights, the roads, and especially the Christmas tree.

But now, the incandescent light bulb, one of the most venerable inventions of its era but deemed too inefficient for our own, will be phased off the U.S. market beginning in 2012 under the new energy law just approved by Congress.  In Europe alsom the stage has been set for the imminent death of the incandescent light bulb. And the rest of the World is also following the same. Already many stores across the world stopped stocking the good old bulbs already.

The days of the traditional incandescent bulb look numbered because these electricity-sapping glass orbs have fallen out of favour with environmentally-conscious governments and consumers.

Moving to more efficient lighting is one of the lowest-cost ways to reduce electricity use and greenhouse gases. In fact, it actually will save households money because of lower utility bills. Ninety percent of the energy that an incandescent light bulb burns is wasted as heat.

LED and it parts

And waiting in the wings is a new breed of hi-tech light based on the humble LED (light-emitting diode), the small lights found in everything from TV remote controls to bike lights. Not only do they promise to solve the bulb’s environmental woes, their backers say they will also respond intelligently to your surroundings and even influence the way we behave.

Efficient LED technology looks set to flick the switch on traditional incandescent lightbulbs forever, say researchers.

Already, the efficiency and long life of LEDs is making them a popular – if costly – option in places where changing bulbs is inconvenient or expensive, such as in motorway lights, traffic signals, airport runways or on large buildings and bridges. For example, the Louvre museum in Paris is currently replacing 4,500 bulbs with LED equivalents, a change that is expected to result in a 73% reduction in energy consumption. Plans are also in place to replace the 25-year-old lighting system that illuminates Tower Bridge in London with LED lighting in time for the 2012 Olympic Games.

An assortment of LED lightbulbs that are commercially available as of 2010 as replacements for screw-in bulbs

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