Light bulbs in modern technology are used in televisions, refrigerators, street lamps, stoves, tanning beds, ceiling fans, cars, and many more objects. So it can be used much more than just as a lighting source.
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This is a tricky question. Similar to the question which weigh more 1 kilogram wool or 1 kilogram iron? 1 kilowatt = 1,000 watt, and 60 watt are 0.06 kilowatt. It is the same power, but expressed in two different terms. The life of the light bulb will be the same, 95 hours.
It means "tungsten" -- the metal most associated with light bulb filaments. Its Latin name is wolfram, from which it gets its element symbol, which is W.
Add up all the individual watts, convert everything to kilowatts, then multiply by the number of hours.
it has more energy than one bulb
Then is used to relate to time and than is used when there is a comparison to be made.