Multiply 7 lamps, such as 7, 14, 2 1, etc. But it doesn't have to be like this. It depends on your conditions and environment.
This is the external embodiment of a heart. Don't force quantity or anything.
Let nature take its course. Otherwise, haste makes waste.
I usually provide two lamps myself. Only when I get up in the morning. I went to work by myself, and the power went out in three or four hours. Some people in the family disagreed, but they blew it in the middle, and there was nothing they could do. I don't order at night, because my family is opposed and I am afraid of burning. So, to paraphrase: which mountain cuts what wood. Whether to order some lights depends on the conditions and environment.