Well yet again I turn to my farm family for advice!! Lost power while I was away for the weekend.. Lights were out for a full cycle ..( missed its 12h lights on) ... What's the damage ??
One missed light cycle during flowering shouldn't have much of an impact on your grow. Only thing I would note is that you may not need to water as much as plants use more water when the lights are on.
I read on a (chuckers)forum many years ago that changing the on/off time 12 hours during flower will give you bananas to make fem seeds. Losing 1 light cycle should not hurt though.