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Why does the life span of a fluorescent light decrease if you switch it on and off frequently?

Apr 28, 2015 17:51 IST

    Q. Why does the life span of a fluorescent light decrease if you switch it on and off frequently?

    Ans. It is better not to switch off a fluorescent light, if you are going to switch on it again within a span of 1 hour. Because each time you do so, a high voltage is needed to charge up a CFL’s ballast. Thus interrupting this process again and again may cause wear and tear of the components of bulb, hence shortening the life span.

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