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 of time – cupboards, bathrooms etc.
The starting current lasts a very short time. Less than a second. So if they are on for a minute, they will save money. The starting current is less than a 60 watt bulb consumes.