Is it true that leaving light bulbs on saves on electricity costs?

Question

I have the tendency to turn off lights when I do not use them. I heard a theory that says leaving the lights on saves on electricity cost.

If so, I would like to know how. Thank you!

Answer 1

No

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If you leave your car engine running even though you are not going to drive it

.

It eats up gasoline

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The same with electric light bulbs it eats up electric cost to you

.

The only one that come out ahead is the store that sells light bulbs and your local electric company

,

Answer 2

Turning on a light takes a little more energy then it does having it burn constantly. If you are turning off and on the light all the time it will use more then leavening it on while going in and out of the room several times. It would be cheaper then turning it on and off 10 or 12 times. However running it 24/7 would eat up more energy.

The answer about the car engine once the engine heat up it will consume less fuel then a cold engine same hold true for light bulbs. keeping them running while not in use for more then a few minutes does not make sense either! When first started there is an energy waste it even more true with gasoline unburned fuel also passes out the exhaust.

Answer 3

No, it doesn't.

Answer 4

No. It doesn't.

Answer 5

Not true.

Answer 6

em. no it doesn't

how could waisting electricity make the cost go down?

Answer 7

No, not true, actually you would need to unplug it from its source when not in use to actually save, period. I had a serious dispute over my bill once and the light company here had a surveyor come out and he went all over the house and told me what was draining the most energy. Ceiling fans was at the bottom of the list, they don't drain much. I say, unplug everything except the frig. when not in use.Or anything that need a constant source, like a clock or something.  

Answer 8

Leaving your lights on DOES NOT save electricity.  It might, however, make your light bulbs last longer.  The filament in a light bulb is very delicate and expands when the bulb is on and shrinks when the bulb is turned off.  So everytime you turn a light bulb on and off, the filament is stressed.  Eventually, it will break.

  

Answer 9

The theory uses the fact that the power necessary to turn the light on is more than the power needed to keep the light on. In truth, the difference is not enough to make leaving the lights on the more energy-efficient habit (unless you plan to leave the room for only a few seconds, which is highly unlikely).

Keep turning the lights off when not using them!