For lights that turn on and off frequently, or are only on for a few minutes a day (like a light in a closet), an incandescent bulb will suffice.

需要频繁开关或是一天只要开几分钟的地方（比如说壁橱灯），用白炽灯泡就足够了。

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He worked in a factory, and also as a security guard in Shanghai. But one day, as he was thinking about how he could improve his life a little faster, he had a light bulb moment.

他一边在一个工厂工作一边在上海做保安，但是，有一天，当他正在思考着更快的提高自己的生活质量时，他突然灵光一闪。

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Then one day at the hardware store I looked at a shelf full of glass lamp globes and the light bulb went on.

然后，一个在五金店我在架子上充满了玻璃灯地球仪和灯泡看天继续进行。

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Without any intervention from politicians or environmentalists societies that progress have been using m ore fuels that have less carbon with higher energy density (1 kg of wood fuels a light bulb for 1 day, 1 kg of coal fuels a light bulb for 4 days, 1 kg of crude oil for 5 days, 1kg of methane for 6 days and 1 kg of uranium for over 140 years).

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That night she fell asleep in her car without any answers but the following day, the proverbial light bulb went off.

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They can happen in the middle of the day, night, or even during a traffic jam, the "aha" or "light bulb" moments in our lives--those thoughts of clear brilliance where the proverbial light bulb appears over our head.

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