theres two schools of thought on this topic,

the only difference in my shedule is i use 18 hours of light and 6 hours of dark during veg, it just seems more logical.


one theory being that 24hrs during veg gives the plants a lot more light, and hence quicker growth.

the other bieng that 18 hours is closer to a natural cycle and uses less power, also giving the plants "downtime" for growth/recovery.

are there any "more scientific" arguments that suggest one or the other that anyone knows of?