No, wattage is the product of amps times volts. You are charged by a utility company for the amount of watts that are used in a hour. These watts are totaled up over a month and multiplied by a specific kw/h (kilowatt per hour) that is set by the utility company. In my area I am charged .08 cents for every kilowatt (1000) watts used per hour.
25-30 watts
Risistance, tolerance, and wattage.
Find the wattage rating on the dimmer controller. This is the maximum allowable wattage that the lamp in the fixture should be. Lamp wattage ratings under the rated dimmer wattage is fine but do not install a larger wattage lamp that is over the dimmer control's rating.
Wattage is a direct measure of how much power is used in an hour. Ex.A 60 Watt light bulb uses 60 watts of power in an hour. Power at your meter is measured in Thousands of Watts or Kilowatts.
Current depends on the Wattage and the voltage rating of the device.
The formula for converting wattage to temperature using a wattage to temperature calculator is typically based on the specific heat capacity of the material being heated. This formula takes into account the wattage input, the time of heating, and the specific heat capacity of the material to calculate the resulting temperature increase.
The cost of electricity for a light bulb being on for a long time depends on the wattage of the bulb, the electricity rate per kilowatt-hour, and the duration it is on. To calculate the cost, you can use the formula: (Wattage of bulb / 1000) * hours on * cost per kilowatt-hour.
Practically its 15 watts. One can see the power ratings on the bulb package also.
The amperage that a chandelier draws is based on the amount of bulbs and the wattage of the bulbs used in the fixture. Count the amount of bulbs and multiply that number by the wattage of the bulbs. Take this total wattage and use this formula. I = W/E. Amps = Watts/ Volts.
Usually a CFL has two ratings. The first is wattage and the second is in mA I suspect the wattage is only the wattage of the bulb itself and the second is the actual current draw of both the light bulb and the ballast. They are not compatible. If you figure the mA and multiply times the voltage you will obtain close to the actual wattage of the combination of the bulb and the ballast. I have a 100 watt Feit BPESL25T which indicates it draws 25 Watts when it actually draws 47.5 Watts. Very close to the mA (400 x 120 VAC =48 Watts) indicated on the base. Almost all CFLs I've tested with my very accurate Fluke RMS meter draw twice the wattage they indicate. Not such a good deal.
Between 7 cents to 12 cents an hour depending on the wattage and your electric company.
To answer this question a total wattage of the heaters and the cost per kilowatt hour must be stated. The cost per kilowatt hour can be obtained from your Ontario Hydro bill. Multiply the total wattage by the length of time in hours that the heaters are in operation. This will give you the cost of operation of the heaters.