Traditional Culture Encyclopedia - Photography major - How many watts does a 480×480 square lamp have?

How many watts does a 480×480 square lamp have?

Yes, that's right, but it's not easy to understand.

There are 500 lamps, each of which is 40W. All the lights are on 24 hours a day. If converted into a few degrees a day.

It is easier to understand this way.

(40*500)/ 1000*24

The first bracket indicates the total wattage of the lamp, divided by 1000, that is, how many kilowatts there are, and then the number of hours left, and the result is obtained.

Precisely

How many (kilowatts) * how many (hours) will do.