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 things up. But if efficiency is your goal 18 is the way to go hands down.

Any arguements?
thcreactor Reviewed by thcreactor 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