[Bagheera pauses, thinking it over. At last, a word comes to mind.]

Fire. That's the other word for it, fire. I know man uses it, and uses it to see at night, so I take it this... "lamp" is powered by fire, as well. I was asking how it does not spread and burn the whole area.

[You took on the task of explaining electricity to a panther from a jungle in the late 1800s, you did this to yourself.]