Originally Posted by
faqcya
Why are you trying to use a servo for something it is not designed for? You don't use a servo for turning lights on and off. You use them to move things I.e. a steering link or throttle link on a nitro car.
That's not necessarily true, you can use a donor servo as a controller board to enable light features, I've also used channel mixing for brake lights too:
https://www.youtube.com/watch?v=p_34oSUgtGs