Anti-Collision Light
Page 2
Holes drilled into the back end of the strobe housing permit passing the two switch wires into the housing.

Switch wires are soldered to the base battery contact and the switch contact.  It matters not which wire goes where, the switch just breaks the circuit. 

If the base connector is a coil spring, wrap the wire around one of the coils several times to provide a mechanical connection prior to soldering.
Removing the dome lens, strobe unit and battery reveals how to make the wire connection.
Using an extra wing rib aids in determining an unobstructed area of the wingtip to locate the strobe.  The location had to be within an arm's reach of a nearby inspection hole because the installation is made from the inside of the wing.

I had to be able to reach through the inspection hole to the back side of the rib to install both the strobe housing and switch.
A hole saw  makes a neat looking hole quickly.
A little touch up with a sanding drum smoothed the hole's edge and allowed it to be sized for a snug fit on the strobe's threaded neck.  Drill a smaller sized hole to accommodate the toggle switch's threaded shaft.
Install the assembly by inserting the strobe housing through the wingtip from inside the wing, install the battery and strobe bulb from the outside then secure everything by screwing on the clear glass magnifying dome and its gasket.  Push the switch through its mounting hole and secure it with its control nut.  Orient the switch toggle so up is ON and down is OFF.
To operate, either flip the switches on during pre-flight and off during post-flight inspections or have your wingwalker do  it in  flight!

To make this operation convenient, omit the wingtip switches and run the wires through the wing to the cockpit panel and connect to a double- pole, single-throw toggle switch.  One switch controls both lights but maintains their independent circuits.  You don't have to hire a wingwalker either!

Better yet, wire the lights into your on-board battery or engine driven generator (DC) and compensate for the voltage difference.  This is STILL less expensive than buying a commercial unit.

Good luck and have FUN !!
Installation is complete!
Page 1