LEDs use only a quarter the energy of incandescent bulbs.

LED灯使用的电量仅为白炽灯的1/4。

They are also recyclable, unlike the older incandescent bulbs.

它们也是可回收的，不像老式的白炽灯泡。

But these bulbs can easily be disposed of and even recycled, unlike incandescents.

但与白炽灯不同的是，这些灯泡可以很容易地丢弃甚至回收。

But number two, it's many times more expensive than that old incandescent bulb that worked very well.

“但第二点是，它比作得很好的白炽灯泡贵很多倍。

They look and behave exactly like the old incandescents.

它们的外观和行为与旧的白炽灯完全一样。

See the difference between a CFL and an incandescent?

看到 CFL 和白炽灯之间的区别了吗？

What you're seeing is a spectrum of light that a typical incandescent puts out.

您看到的是典白炽灯发出的光谱。

The structure gives off " a warm, radiant incandescence" from within.

该结构从内部散发出“温暖、光芒四射的白炽光” 。

From some night at limelight or the tunnel?

就像刚有白炽灯和隧道的年代？

Incandescent bulbs are less efficient than CFLs, which means they use more electricity.

白炽灯泡的效率低于节能灯，这意味着它们消耗更多的电力。

What you're actually seeing is a tiny bit of interplanetary debris: rock, ice, or metal ramming through the Earth's atmosphere, heated to incandescence.

岩石、冰或金属撞击地球的大气层，加热到白炽的样子。

Which is replacing Thomas Edison's incandescent bulb as the the light source of the 21st century.

它正在取代托马斯爱迪生的白炽灯泡成为 21 世纪的光源。

They're a lot more energy efficient than incandescent bulbs which lose a lot of their energy through heat.

它们比通过热量损失大量能量的白炽灯泡更节能。

By using a mixture of phosphors, they produce almost all the colors of an incandescent bulb.

通过使用荧光粉混物，它们可以产生白炽灯泡的几乎所有颜色。

The story starts here, with the classic incandescent light bulb.

- 故事从这里开始，使用经典的白炽灯泡。

A century ago Thomas Edison had not yet invented the incandescent lamp to bring light to many dark places of the earth.

一世纪以前，托马斯·爱迪生还没有发明给地球上很多黑暗的地方带来光明的白炽灯。

The department's guidance says energy-efficient light bulbs typically used 25%-80% less energy than traditional incandescents and last three to 25 times longer.

能源部的指导意见说，节能灯泡通常比传统白炽灯节省25%-80%的能源，使用寿命是白炽灯的3 - 25倍。

Consumers using incandescent bulbs use more electricity, which means that more coal has to be burned, which means that more mercury is released.

使用白炽灯泡的消费者使用更多的电力，这意味着必须燃烧更多的煤炭，这意味着释放更多的汞。

Sometimes the light was very strong, and the incandescent white square cast against the ground glowed so brightly that the torches in the Great Hall paled in comparison.

有时光线非常强，投射在地面上的白炽灯发出耀眼的光芒，大殿中的火把都显得苍白无力。

And in India, they're looking to replace a quarter of a billion incandescent light bulbs with LEDs, which will save them seven billion dollars in energy costs.

在印度，他们希望用 LED 替换十亿白炽灯泡中的四分之一，这将为他们节省 70 亿美元的能源成本。