Is the flowering stage gonna be longer with bad light?


I got a question that im hoping someone can answer.

I got some plants that i gave to my father because he wanted to give it a go with some clones.

He got a small tent,livingroomlights,soil and water.

The buds look in my opinion great considering the climate and everything around it.

The flowering is 3 months on that particular strain.

On the tryouts the trichomes look a little less than on mine standing in big tent/led/coco/better surroundings.

My question is will the flowering be longer with bad lights?

Now they got six weeks.

Hope someone can help me. Wishes everyone a good summer.