Oooo bad temper.

1. You can run 25% more wattage for the same money. (so a 250w on 24 will cost close to a 400 on 18).

Ed disagrees: "Turning the light off for 25% of the day decreases growth rate by 25%. This is actually costly because it requires the plants to spend a longer time in the vegetative stage."

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.

Ed disagrees: "Turning the light off for 25% of the day decreases growth rate by 25%. This is actually costly because it requires the plants to spend a longer time in the vegetative stage."

I believe Ed more than you, thanks a lot.

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faithless Reviewed by faithless 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