The website HowStuffWorks.com recently published a very interesting article on the advantages of LED lighting as opposed to "conventional" lighting. Here is an excerpt from the piece (written by Julia Layton):
While you won't find LEDs in too many household lighting fixtures these days, there are a couple of good reasons to want them there in greater numbers.
First, there's the reduced energy use. The LED method of producing light loses far less energy to heat than do other lighting technologies. It's dramatically more efficient than the vacuum/filament method used in incandescent bulbs -- sometimes around 85 percent more efficient; and it's even about 5 percent more efficient than the CFL's plasma-tube approach [source: Taub].The reality is, even at $100 for a single bulb, LEDs will end up saving money in the long run, because you only need one every decade or two and you spend less money on home lighting, which can account for about 7 percent of your electric bill.
For the entire article, click here.