even on after market LED.s individual lights go out, on my first light installation at least 6 lights are out, I just left it, as there are 12 lights on the string,,. I will change the lights if a few more go out,.
on my Piaggio B V 350 I changed the turn signals from the USA model to the euro model that are LED.s all I had to install was a Groote LED winker relay with a ground wire, replaces the Piaggio one