The old bulb is on its way out. Here's how we'll light the future
By Charlie WhitePosted 07.17.2007 at 2:00 am 1 Comment
Power-hungry incandescent bulbs have been glowing since 1879, and they still provide 90 percent of home lighting in the U.S. But with a measly average of 15 lumens per watt, or 5 percent energy efficiency, incandescents squander money and suck energy from carbon-dioxide-spewing power plants. To cap emissions, Australia and the European Union are phasing in bans on Edison's antiquated technology, and other governments are likely to follow—just as low-power alternatives are starting to shine.