Ok, let me explain my situation first, because I prefer to eat salads, so I plan to arrange a small area indoors to grow vegetables, but I don't know anything about this, so what should I do? What am I trying to solve? Light? earth? water? Or something else? I also did a data search in this regard, and said that the most important thing is a grow light? Is it true? For regulatory reasons, I cannot post the link to that news article, so please give your opinion.