Ive seen some different advice on this and was curious if anyone has found it beneficial to not water when lights are off on ebb/drip systems. I must of missed something cuzz i can't really find much info on this but there seems to be a few people talking about how they do it.
If the lights are off transporation is next to zero. Plant activity drops off. Watering therefore isnt nessecary.
Although transpiration is next to nothing, you don't want roots to dry out either. Watering during lights out is merely for hydration of roots, not necessarily for feeding plant. Personally, I would keep watering timings evenly spaced, so as not to risk dehydration of roots.