don’t switch the light keep it at 18 hours on they are autos you don’t need to switch to a 12 hour light cycle with those they will do everything on their own
Well I hope you have factored in stretch since they will easily double in size in flower and you can flip to flowering lights schedule anytime the plants will only flower if they are mature enough
Oh cool thanks guys and yes i have a 6 ft grow room i can raise the lights as they grow
Autos dont need any changes in lighting
Best light schedules are as follows
24-0 on all day everyday
Anything less isnt helping.
It would hurt your growth and yeilds