I am remodeling my kitchen and I will be having a 4 foot by 6 foot kitchen island. I would like to to have 2 or 3 light across pendant lighting installed above it. What is the rule for how big (height and width) it should be? Also, how many inches above the island should the lighting be? I also would like to know has wide the lighting should be to go over a 6 foot island that will have a bar.