I was flying with an A320-214 that had big winglets (I think they were called Sharklets). I noticed that the positioning lights were facing forward on the leading edge of the winglet (the "notch" in the picture).
I was wondering why the light is placed there, because it seems to be very unoptimal.
Isn't the light mostly blocked when viewed from behind? Why is not not placed at the top of the winglet? Is that even a big concern?