Is actinic lighting only part of the photoperiod?

scrapman

Member
I turn my actinics before my 10Ks, leave my 10 Ks a total of 8 hrs/day, and leave my actinics on for an extra 2 hrs.
Is it too much light?
Should the actinics be turned on only 8 hrs/day only?
Tjanks
 
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