Tail Light Adapter Ring I purchased a tail light adapter ring from Effectus AeroProducts Inc. The ring is simple and nicely made. It comes complete with blind rivets to attach it to the lower Rudder fiberglass tip. I match drilled the ring ro the tip after filing the end of the tip flat. unfortunately, to get the fiberglass flat and perpendicular to the rudder, i had to remove a lot of material. To ensure that the light would be sturdy after match drilling I applied resin mixed with west systems 406 silica to the surface of the tip and set the blind rivets into the material