AsNoriuanswered grow question 2 years ago You need most light during flower, some lights have dimmers for that purpose, during vegetation stage you dont blast them on max, but slowly go there together with girl size.
So its even smart to have veg and flower lights, electric cost millions now ....
In early stage of girl life you can do more harm, than any good with excessive light, try to replicate nature at home.
Spring sun is way colder and less intense than in summer.
Follow that .
Good luck !