I’m guilty of this as well. Folks of a certain age will always tend to measure energy consumption in “light bulbs.”

Sort of like how Americans always measure size in “football (gridiron) fields.”

The energy consumption of a traditional incandescent bulb, while obviously inexact, in nonetheless somewhat of a useful rough relative measurement. It is a power draw that is insignificant enough that we don’t mind running a few of them simultaneously when needed, yet significant enough that we recognize they ought to be turned off when not needed.