This evening I installed the bulkead connectors, one at the root and one at the tip, 4 in total for the wing tip lighting. The wing tips are removeable and will just plug into these connectors. When the wings are connected they will plug into the fuselage to deliver power to the wing tips. There are 4 wires, Power, Ground, Synchronize and Strobe. The instrument panel has 2 switches for wing tip lights, Nav and Strobe. The synchronize wire will make the strobe lights blink at the same time.