Flowering with 13 hrs on 11 hrs off.

[MikeParent]

Flowering with 13 hours on, 11 off.
The extra hour hasn’t impeded flowering
STRESSLESS 8.5% more DLI.

 

[Gmix]

As long as plants get 10hrs dark they flower
11/13 isn’t new or a improvement it’s just your preference

 

[LoveGrowingIt]

I've not tried it, but I've heard some growers change the light to 11/13 toward the end of flowering. The idea is that increasing darkness mimics the fall season. The current science is conclusive that it's the duration of darkness that is most influential in triggering flowering.

 

[Jonesfam]

Found my best results to taper down from 13 down to 11 sometimes as low as 10 hrs of lights on, depending on strain. But if I stick with just 1 for perpetual grow, it's 11 on 13 off. Just my preference, where I feel I get the best results.

 

[figolus]

When i flip to floworing , I grow like this 11h light on and 13h light off