Need help. Hps with sunlight indoor

Hello,

I would really appriciate any help here...

My skunk is now flowering, In week 3, I have it at the window in
my apartment but it doesnt get any sunlight in the morning so my
question is,

Can i use a hps with led for about 3-4 hours and then using the sunlight later on? Or will this stress the plant? : D

Thanks in advice
Regards Hostem

Flowering depends on dark hours not light. As long as you maintain long enough "nights", you can add supplemental lighting without worry,

Thank you very much
Just wanted to be sure, Appriciate ur answer big time : D