The idiom on and off means inconsistently or wavering in certainty, but the context describes the security cameras' red lights behaving consistently
Context: "The only things that ruined the elegance of the room were the security cameras mounted to the walls, their red lights winking  consistently and not wavering in certainty like devilish fireflies as they swiveled around in slow, steady circles."
Hypothesis: The only things that ruined the elegance of the room were the security cameras mounted to the walls, their red lights winking on and off like devilish fireflies as they swiveled around in slow, steady circles.
Based on the context, is the hypothesis true, false, or unknown?