justicebzwiegandjlz832
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Timers fail more often than lights do, and with photoperiod feminized plants a stuck timer is a real risk. A mechanical unit that slips by an hour every few days gives the plant an irregular night, which counts as stress even when no stray light gets in. One line at https://queenfeminizedseeds.com sums it up well, saying that a consistent dark period matters more than hitting an exact clock time. A digital timer with battery backup costs little, and checking it against a phone once a week is easy.