just a curiousity about lighting

sooo i was thinkin light schedules are always even numbered. 24/0 20/4 18/6. why are they never odd like 19/5 or 23/1? just wondering

also how imperative is it to have your flower room is wun hunderat percentage light proof. i mean obviously you wouldnt want a strong light on them but woulda sliver of light cause a problem. on that note what effect if any does a full moon play on an outdoor crop??

As far as the light schedules, I'm sure its even numbered just because its easier. Obviously its not 23/1 because the plants need constant light but the others are just guidelines.

A sliver of light might now hurt but light leaks are a real concern..

that they are. ima b sure to have my room sealed off. i just always wondered about the moon. sometimes that cheeze in the skyy shines like cheese under magnification 30 times