Your Questions About Saving Energy

Michael asks…Energy-saving fluorescent light bulbs - do they use less energy if switched on for only a minute?I heard that they use a kick of energy when you first switch them on, then use a lot less while they stay on. Is the initial amount more than, say a normal 60w bulb? If so, what is the length of time where the two use the same amount of energy? This isn't an exam question - I just want to know if it is worth using energy-saving bulbs where they are used frequently for short periods

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