Tuesday, January 22, 2013

From your watch to your TV


And now to lighting your entire house, LEDs have come a long way. The science is in place, it only awaits the market price.
The lighting industry has finally come up with an energy-efficient replacement for the standard incandescent bulb that people actually seem to like: the LED bulb.

Although priced at around 20 times more than the old-fashioned incandescents, bulbs based on LEDs, or light-emitting diodes, last much longer and use far less electricity, a saving that homeowners are beginning to recognize. Prices for the bulbs are falling steadily as retailers like Home Depot and Lowe’s sell them aggressively and manufacturers improve the technology.

And because the light in LED bulbs comes from chips, companies have been able to develop software applications that let users control the bulbs, even change the color of the light, with tablets and smartphones. Apple sells a three-pack of such bulbs, made by Philips, with the hardware to operate them for about $200.

“You’re seeing all of your growth in the LED category,” said Brad Paulsen, a Home Depot merchant. “We absolutely expect LED technology in four or five years to be the most popular lighting technology that’s out there.”

Last year, LED sales, though small at about 3 percent of the residential market by some estimates, grew faster than those of any other lighting technology, according to retailers and analysts.
As the price comes down their use will increase. And it is their contribution to nationwide energy savings that will show their true value.

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