I'm surprised that you are asking about a 600 watt flourescent tube, since most flourescent tubes are in the region of 30 to 80 watts - I can't think where you would find such a huge flourescent tube, so you might have meant a 60 watt tube. However, any electrical apparatus rated at 600 wats, whether it's a flourescent tube or a motor or a heater uses six tenths of a unit of electricity in one hour. 1000 watts would use one unit in one hour.
The wattage of a bulb is how much energy it consumes in 1 sec. So the bulb you are talking about converts 600 Joules of electricity into light energy every second.So to sum it up the wattage of an item is how much electricity it uses each second in this case 600 Watts. If this isn't what you are looking for i recommend rethinking your question.
600 Watts * 18 hours = 10,800 Watt hours
10,800 Watt hours = 10.8 Kilowatt hours.
A object rated at a certain wattage (ie 60 watt lightbulb), indicates that it uses 60 watts in one hour. All ratings are by the hour usage.
.6 kwh
If you ran it for 24 hours then you would use 14.40 KWH per day. In Montana in December of 2012 we pay between .10 - .11 cents per KWH. That 600 watt bulb would cost $43-$47.52 per month (using 30 days per month) if it was on 24 hours a day.
It uses 0.6 kWh (0.6 unit) each hour, which cost about £0.10
A 32 watt bulb uses 32 watt-hours, or 0.032 kWh, every hour it is used.
0.6 kW times 18 hours = 10.8 kWh.
25 watts * 24 hours = 600 watt hours = 0.6 kwh {1 kilowatt hour = 1000 watt hours} 0.6 kwh * (0.085156 per kwh ) = 0.0510936 or about 5.1 cents
In ten hours, a 200W bulb will use: 10 * 200 = 2000 Watt-hours = 2 kwh
A kilowatt is 1,000 watts. A 60 watt bulb uses 60 watts in an hour. So, in half an hour it uses 30 watts. Now if a kilowatt costs 20 cents, what does 0.03 kilowatt cost?
A 32 watt bulb uses 32 watt-hours, or 0.032 kWh, every hour it is used.
0.6 kW times 18 hours = 10.8 kWh.
25 watts * 24 hours = 600 watt hours = 0.6 kwh {1 kilowatt hour = 1000 watt hours} 0.6 kwh * (0.085156 per kwh ) = 0.0510936 or about 5.1 cents
In ten hours, a 200W bulb will use: 10 * 200 = 2000 Watt-hours = 2 kwh
A kilowatt is 1,000 watts. A 60 watt bulb uses 60 watts in an hour. So, in half an hour it uses 30 watts. Now if a kilowatt costs 20 cents, what does 0.03 kilowatt cost?
KWH stands for kilowatt hour, meaning a thousand watts used for an hour. In terms of, for example, the familiar 60 watt light bulb, you would need (just under) 17 such light bulbs operating for an hour to consume 1 KWH.
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.
400 watts, but has capability up to 460 watts.
I kW = 1000 W 100 / 1000 = 0.1 So a 100 W bulb uses 0.1 kW For one hour that's 0.1 kWh
A 0 Watt bulb does not consume electric power so the cost is zero.
good question A KWH is 1000 watts of power used for one hour. A 100 watt bulb would need to be on for 10 hours to use 1 KWH.
The bulb's power, 75 watts, is the power it uses continuously all the time it is switched on. The energy it uses can be measured in watt-seconds (Joules) or in watt-hours. A 75 watt bulb uses 75 watt-hours each hour, which is 0.075 kilowatt-hour.