“My time in the light is short” is a Transformers reference, obviously.  In the third season episode “Five Faces of Darkness, Part 2,” Rodimus Prime says it as he appears to be dying, and Arcee CLAIMS he’s quoting Optimus Prime’s dying words in The Transformers: The Movie.  But he’s not.  Optimus said something very similar to it in an earlier draft of the movie which the writers of those episodes were working from, but whatevs.  In the released film, Optimus said, “Soon I will be one with the Matrix” instead.

The point is, punching people in the face is hilarious.