This way to figure out the answer to this question has been given in detail in a related question: "What savings can a compact fluorescent lamp give?"
A 100 watt light bulb does not cost more that a 1200 watt hair dryer. The average price of a light bulb is about 90 cents whereas a hair dryer can range up to 20 dollars.
$1.00 per month
$40.00 a year
No. A 70 Watt metal halide bulb can not be replaced with a 150 Watt halide bulb.
You are charged by Kilowatt Hours. An average cost is about 12 cents. To make the math easy, assume a standard 100 watt incandescent bulb. If you had ten of them turned on for an hour it would cost 12 cents.
A 100 watt light bulb does not cost more that a 1200 watt hair dryer. The average price of a light bulb is about 90 cents whereas a hair dryer can range up to 20 dollars.
A 0 Watt bulb does not consume electric power so the cost is zero.
isang milyon
There are about 8760 hours in a year, so running a 60 watt bulb for a year would consume (60 times 8760) or 526000 watt hours. Electric power rates vary, but at $0.15 per kilowatt-hour, that would be almost $80.
Almost twice as much as 100 is almost twice 60.
Typical home energy cost is 10 cents per kilowatt hour A 60 watt bulb running for one hour uses 60 watt hours .10 X (60/1000) = .006 cents per hour 16.66 60watt bulbs on for one hour would cost 10 cents.
$40.00 a year
$1.00 per month
ahm...depends on the cost per watt charged by your local provider... how much is it?
No. A 70 Watt metal halide bulb can not be replaced with a 150 Watt halide bulb.
You are charged by Kilowatt Hours. An average cost is about 12 cents. To make the math easy, assume a standard 100 watt incandescent bulb. If you had ten of them turned on for an hour it would cost 12 cents.
By energy you mean watt hours. So the equation is watts x hours = 1680 watt hrs. Or stated in Kilowatts it would be 1.68 kw hrs. Average cost in USA would be about 18 cents.