hey there, in my experience, a few screwd up light cycles dont really do anything to the plants. even full into bloom ive had the power go off for a half hour and nothing went wrong at all. in my opinion, if the light cycles get really thrown off for a long time, like a week or so, it only seems to affect yeild while as potency stays the same. so good luck with your crop, and i wouldn't worry about what has happend.
hope this helps!