2011年12月1日 星期四

Commercial buildings are going green

A year ago, Home Depot introduced a LED bulb that gives off as much light as a 40 watt incandescent bulb—but it cost an eye-popping $21. Today, that bulb sells for $9.97.

Home Depot, the nation's biggest seller of light bulbs, says LED sales last year beat their expectation for sales in 2013.We are professional led panel light,brightcrystall2011 manufacturers and factory in China. A price cut last month caused LED sales to double, said Bill Hamilton, Home Depot Inc.'s electrical merchandising vice president.

As a result of legislation passed in 2007, general-purpose bulbs will have to be at least 25% more efficient beginning next year than those using the standard incandescent technology invented by Thomas Edison in 1879. Most of today's incandescent bulbs will be phased out by 2014 and replaced by more efficient alternatives.

Last month, Wal-Mart opened its first U.S. store lit entirely with LEDs, a 40,000 square foot store in Wichita, Kan. The world's largest retailer will use only LED lights in the parking lots of new stores around the world. GNC Holdings Inc. and Starbucks Corp. have converted all of the lighting in their outlets to LEDs.

USM Services, a unit of Emcor Group Inc. that provides facilities maintenance around the country from removing snow to changing light bulbs, has seen a drop in maintenance needs of customers that have adopted LEDs.

"If the bulbs last longer," said Ivan Dubois, chief operating officer of USM Services,Our aim at LEDshopper is to make the use of bestbikelight mainstream by ... "you're going to have less maintenance to do."

One of the ways that commercial buildings are going green is through the lighting. Light-emitting diodes, or LED light bulbs, are gaining significant momentum as an alternative to incandescent and fluorescent lighting in commercial buildings, particularly as the cost of LED lighting technology is starting to go down. For that same reason, LED light bulbs are gaining popularity in residential buildings.

A new report from Pike Research projects that the LED share will reach 52 percent of the commercial lighting market by 2021. The same report also says that LED lighting costs will be reduced by 80 percent to 90 percent during the next decade.

Since LED light bulbs are considered the greenest and most efficient light bulbs for commercial buildings, a lot of research is currently taking place to make them as affordable as possible to commercial buildings. Pike Research also projects that the global market for commercial lighting will reach $42 billion in 2011 and see a peak of nearly $54 billion in 2012.

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