Feit Electric Vintage Style Carbon Filament Bulb

飞特电器复古型碳丝灯泡

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Soon, the lab got a carbon-filament bulb to last 40 hours.

很快，该实验室制造出持续40小时的碳丝灯泡。

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And besides, we should not replace a filament bulb with a low-energy one and be done with it.

再者，我们不能认为就是把节能灯换上就万事大吉了。

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The solution was a vacuum cap that sits over the whole unit, much like the glass globe surrounding the tungsten filament in a flashlight bulb.

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