Not many but it depends on the specific design! Look on its own label, either on the lamp or the supplier's packing.
Incandescent night lights are generally in the 3, 5, or 7 watt sizes. The newer, LED night light are much more efficient than incandescent lights, and thus consume much less power.
its very cheap, about 9 cents per year.
It costs about $22 a year, or about $2 a month. It really depends on how much you run it.
$40.00 a year
It depends on your location.
It depends if you use a newer LED, or older incandescent bulb style.The old bulb style (still popular, and usually cheaper to buy) use about 7 watts.If you use that for 8 hours, you would use 56 watt-hours. For a year that would be about 20.5 kWh (kilowatt-hour).An LED style light may be 1/4 watt, which works out to be .73 kWh. per year.How much that cost depends on where you live, and what rate you pay. 10 cents an kWh is a reasonable approximation for the United States. At that rate, the Bulb light would cost about $2 a year, and the LED would cost 7 cents.If you leave the light on all the time (in a dark bathroom) triple these numbers. The bulb style would be $6 and the LED about 20 cents. You can see that although the LED light is more expensive up front, it could pay for itself in energy savings in about a year. But neither light will cost that much to run.NOT MUCH, I would say A penny or less A day.....a different (cost and environmental) perspective - although the answers above are correct, for small devices using cost always gives answers that seem tiny. For 2 reasons we should get away from this approach: (1) lots and lots of small items add up to a lot; individually they might be small but if that means we ignore all small costs they soon add up. (2) think carbon - 20kWhrs is about 20kg of carbon dioxide (say 45 lb) a year - that's about 13 cubic metres of greenhouse gas just for a nightlight!
It depends how much you pay for electricity. A 15 Watt bulb would consume around 134 kWh of electricity. In the UK, electricity is around 10p a kWh, so it would cost £13.40 to run the bulb.
a nightlight can cost a few dollars depending on the type of nightlight it is such as a bulb or sensor. the decor of the nightlight can be factored in the cost as well.
NightLight was created in 2011.
Yes a baby can sleep with a nightlight without awakening. It does, however, depend on how much of a light sleeper the baby is, since all babies are different. But generally, a nightlight should not be a problem as the light is soothing and not blinding like the ceiling lights.
it cost 50$
Nightlight - 2001 was released on: USA: August 2001
The Nightlight Zone - 2012 was released on: USA: 9 October 2012
a lot
0.00
Millions
2000$
$30-40, depending when you register.
No.