Originally, I was going to use basic Molex connectors for the navigation and strobe light connections at the interface between the wing and strake. Then I found some weatherproof AMP connectors.

The wingtip light assembly has four wires (Ground, Navigation Light Power, Strobe Light Power and Sync) so I selected a 4-position connector.

Here is the fuselage side of the connection.

The red wire is the “sync” wire. This allows the strobe on the left to be synchronized with the strobe on the right.

Up until this point, I was labeling the wires with plain english (Oil Pressure, Starter, 24v, etc.). But after considering the number of labels and the cost of the heat shrink tubing, I decided that I should adopt the modified version of aircraft wire labeling standard. Hence the somewhat cryptic “L1-4B-20”.