The four watt bulb, installed in a fire station in Livermore, California, has been declared the oldest known working light bulb by the Guinness Book of World Records.
虽然只有四瓦，但是这只仍在加利福尼亚州的利弗莫尔消防局正常工作的灯泡已经被《吉尼斯纪录》收录为仍能正常工作的最老灯泡了。

The bulb was a gift from a businessman in 1901 and with the exception of a brief period in 1903, a week in 1937 and some power outages, the light has remained on.
这只灯泡是一位商人于1901年赠送给消防局的，除了1903年的某段时间、1937年中的某一周以及偶尔停电的时候，这只电灯泡一直都处在工作中。

Lynn Owens, the chairman of the town's light bulb centennial committee, said that the light's longevity has baffled scientists.
该城灯泡百纪念委员会的会长Lynn Owens说，连科学家也弄不明白这只灯泡寿命怎么会这么长。

He said: "Nobody knows how it's possible. It is a 60 watt bulb and it's only turned on for about four watts but nobody knows why it keeps burning.
他说：“没有人知道这是怎么回事。这只灯泡本来有60瓦，到现在只有4瓦的亮度了，没人知道它怎么现在还能亮着。”

"We've had scientists from all over the country look at this light bulb. Of course nobody has ever been able to touch this it," he added.
“全国各地的科学家都来研究过这只灯泡。当然现在还没有人碰过它。”他说。