These light bulbs look the same, but their effects on the environment are different.

这些灯泡看起来一样，但对环境的影响各不相同。

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These light bulbs, which use about 75 percent less energy than incandescent bulbs, have been around since the early 1980s.

这些灯泡，其中约百分之七十五使用较少的能源比白炽灯泡，已出现自1980年代初。

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The quality of light from these new bulbs is different.

这些新式灯泡的光照的特色各不相同。

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Realising their designs would involve assembling and connecting hundreds or thousands of components by hand, using unreliable solder, and then connecting these dinky little constructions to tens of thousands of light bulbs.

ECONOMIST: Jack Kilby