Do light bulbs consume huge energy when first turned on?
There is a myth going around which says we should leave our lights on all the time. The myth says that, if we turn on our lights, this will consume a huge amount of energy. But it’s a myth. You can prove this yourself. Go outside and find the electric utility meter. See the little wheel which slowly turns? OK, now go indoors and turn off everything in your house (including the furnace and water heater.) Verify that the little wheel has stopped turning. Next, turn on a single 100-watt light bulb in your house, then use a wristwatch to time how long it takes the wheel to rotate once. This gives you a rough idea of how much energy that light bulb is using every minute. Now turn off the lamp. Finally, have someone stand next to the lamp while you stay outside and watch the electric meter. When you yell “start,” have them turn on the lamp, and at the same time start timing the little wheel.
There is a myth going around which says we should leave our lights on all the time. The myth says that, if we turn on our lights, this will consume a huge amount of energy. But it’s a myth. You can prove this yourself. Go outside and find the electric utility meter. See the little wheel which slowly turns? OK, now go indoors and turn off everything in your house (including the furnace and water heater.) Verify that the little wheel has stopped turning. Next, turn on a single 100-watt light bulb in your house, then use a wristwatch to time how long it takes the wheel to rotate once. This gives you a rough idea of how much energy that light bulb is using every minute. Now turn off the lamp. Finally, have someone stand next to the lamp while you stay outside and watch the electric meter. When you yell “start,” have them turn on the lamp, and at the same time start timing the little wheel. See how long it takes the wheel to make one complete revolution when the bulb has been suddenly turne
Related Questions
- When comparing to fluorescent light bulbs, how much energy does an incandescent light bulb consume and how much CO2 is emitted in the course of producing the electricity?
- Do halogen light bulbs consume as much energy as incandescent light bulbs? How do they compare with low energy bulbs?
- Do light bulbs consume huge energy when first turned on?
