you actually don't save much like that anyway...The electric cost doesn't come from running the lights as much as turning them on/off and causing spikes. But GK hit the nail on the head. Lowryder is autoflower, and you need some dark epriod. I have seen both. I have friends at as medsite that specializes in lowryder crosses for it med patients. some have claimed that; for lowryder strains only!!!; You can run 24/0 or 20/4 or 18/6,
You could damage your yield considerably by alternating photoperiods...doesn't make any sense! peace