It’s been a while since I touched on Sino-Korean vocab! It’s something that’s always been there, but I’ve picked up on it more recently; many Korean electronics have a theme of using 전. Of course, this comes from Hanja influences with the Hanja 電 relating to electricity/electric words.
전기: electricity; “electric energy”
전기료: an electricity bill
전류: electric current
전압: voltage
전선: electric wire
송전: power transmission
양전기: positive electricity
전산: data processing
전자파: electromagnetic waves