Thanks to a chat with Stan along with his drawing, I tackled the mast lights today. Whilst close-up the LED soldering in the light housing isn’t that neat, it works, fits in the housing and ready for rigging to the mast. Following Stan’s suggestion of using epoxy in the fitting to both secure the LEDs and insulate the wires, it wasn’t that hard in the end.
I decided on using the thin wire as the lights haul rope rather than making the wires additional to the whole structure, wired in series it means one wire up to the top, wire between the two lights and then the bottom wire back to the negative return. The weight of the lights will be taken by two rigging cords so will be fine once completed.
Both masts now fitted, so not long before making a start on the rigging.