Low-Cost Lights for Amateur-Built Aircraft

July 2017 - I found these two sample navigation lights at the Base Camp store on Cartier Street in Montreal. They had two, and I bought them for $30. If the battery is installed positive to negative, they strobe, and if reversed, the lights are on steady. It would be fairly easy to make a teardrop fairing to enclose them. As they are, they have clips to retain them and screw holes to attach them. I suppose you could also tape or glue them on.

It would also be possible to wire them through a double-pole, three-position switch to do off/on/strobe. — Ed.