There was a cord which would discharge the strobe-packs through the apparatus itself.
"Long Ago, Far Away"
William Fitzgerald Jenkins AKA Murray Leinster
"Instead of making a terrific steady current and cutting it off, I'm going to start with it not flowing and use a strobe-light pack.
"Long Ago, Far Away"
William Fitzgerald Jenkins AKA Murray Leinster
My vision washed over pink, and a strobe pounded at the edges of my vision.
"Down and Out in the Magic Kingdom"
Cory Doctorow