Forty percent of that powers old-fashioned incandescent light bulbs—a 19th-century technology that wastes most of the power it consumes on unwanted heat.

其中40%的电能用于老式白炽灯——这是19世纪的一项技术，它所消耗的大部分电能都浪费在制造多余的热量上。

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The incandescent light bulb, invented by Thomas Edison, which came to be the symbol of inspiration, has been developed into hundreds, if not thousands, of forms.

托马斯·爱迪生发明的白炽灯成为了灵感的象征，现在已经演变成数百种甚至数千种形式了。

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Old-style incandescent light bulbs generate heat as well as light.

小贴士和提醒：老式的白炽灯泡既可以散热还可以照明。

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LEDs produce as much light as incandescent light bulbs but consume only 10 percent of the electricity and last many times longer.

VOA: standard.2009.12.13

On the eve of Christmas 2007, quite a few obituaries for incandescent light bulbs were penned.

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Our target is to make the price of this bulb equivalent to incandescent light.

WSJ: Seoul Semiconductor's LED-Lighted Path

Plus, people simply look better under soft incandescent light reason enough to keep them legal.

FORBES: Congress Kills Light Bulb Ban - Sort Of