I am of the opinion that as close an emulation of "natural" conditions as possible is best, no country where cannabis is natural has light 24 hours a day so I fail to see why my plants should be treat any differently.

Each to their own but I would say it "stresses" the plants and I prefer to keep as close to nature as possible.
psychocat Reviewed by psychocat on . Why 18 hours works for me O.K here are a few reasons to run your veg 18 hours instead of 24. 1. You can run 25% more wattage for the same money. (so a 250w on 24 will cost close to a 400 on 18). 2. In a sog or perp harvest where your veg is running constantly 24 or 18 will have no effect on yield though it will have a large impact on electricity consumption. 3. It is simply more natural for the plant. To be fair I will say that if you have to run the same light for veg and flower 24 may speed Rating: 5