@GreenRN, they have a fairly good spectrum, maybe they lack a bit in the reddish part of the spectrum, to promote flowering. If you have an hps, i think it's time to put it on :)
Beside that, if you want more yield, for the next run, you may want to start lst, hst, fim, defoliation and so on.
The objective is to make the highest number of buds under the light in the end :)
In this scenario, is better to have a bit more plants in smaller containers, they will finish in time with the schedule and they will compensate a bit for the increased hours of light.
The procedures will stess the plants a little, so they will need a little bit extra care.
Have fun!
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