I have a similar situation. I am trying to hook up 5 lights at 55W each. They are part of a wakebar setup with 3 facing forward and 2 facing back. I was trying to connect them using two switches. One switch to control the front 3 lights and on to connect the back 2 lights. How would the circuit change? I ran one ground wire for all lights. I realize now that I should run a seperate wire for each light. These are being run to a fuse box that is already wired for ACC switches and 10 A fuses. I need to verify the switch Amp rating.