Most designers use 36 inches above the table as a general rule of thumb.
What Is The Correct Height To Hang A Chandelier Over A Dining Room Table?
It all depends on what is underneath. If you put a tall flower pot with the flowers, the heat of the light will surely burn them. I you are to do it, place something smaller. The height could vary, and it should permit you have a conversation while sitting at the table and being able to see each other and not feel that the lamp bothers your sight with the glare.