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Two articles maybe of interest - the first sort of more for women, and the second sort of more for men:
https://jessicasmithtv.com/the-light-vs-heavy-weights-debate-which-is-better/
https://trugrit-fitness.com/blogs/news/what-weight-dumbbells-should-i-use
It depends on you. You want to have muscle fatigue at the end of every set.