The first character is 电 (electricity). Guess the second character from the emoji clue. Then guess the word formed when the two characters are put together. E.g. 火 (fire) → 火车 (train) ← 车 (vehicle); you *may* need a teeny bit of imagination ...
The words formed are all nouns and somewhat related to electricity; ‘electric(ity)’ is not necessarily part of the word.
I may have been slightly liberal with some Character 2 translations (and of course some characters have many translations!) but what's a puzzle if it's impossible to solve, right?
Even so, some of the puzzles are quite hard. Look closely at the 6th picture.