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The previous images of the lights powered on wasn’t all for play.  I wanted to figure out how I would wire all the pieces up.  I decided to ground all the lights locally to the airframe.  The first two pictures shows the ground bus mounted to the spar.
      I then enlarged and installed grommets in the leading edge tooling holes and ran wire.  I ran four, 16AWG wires.  Three will carry a load and one will be an in place spare.

      In the last picture, only three wires run through to behind the spar.  One stops in the bay with the landing light.