Indeed, whereas traditional light bulbs emit just 5% of their energy as light, and fluorescent tubes about 15%, the Ceravision lamp has an efficiency greater than 50%.

确实，传统的电灯泡只将5%的能量换化为光能，荧光管则用15%的能量换化为光能，而凯若维森灯的能源利用率至少是50%。

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These light sources are the fluorescent lamp, halogen lamp. Short-arc xenon lamp and metal halide lamp.

这些光源为荧光灯，卤钨灯，短弧氙灯和金属卤化物灯等。

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Fluorescent light attenuation, prolong lamp life.

灯管光衰小，延长灯管寿命。

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In September, 1986, after several months of sharing a cell with another hostage, Anderson was, for no apparent reason, returned to solitary confinement, this time in a six-by-six-foot cell, with no windows, and light from only a flickering fluorescent lamp in an outside corridor.

NEWYORKER: Hellhole