I like the blinking emitters because you can SEE if they're working. It's not nearly as easy to see non-blinking LEDs using a phone, but it's possible. I've also heard there's a bit more of a voltage drop across blinkers, meaning they won't perform as well in series. I haven't needed to pursue that.
A good answer is easier with a clear question giving the make and model of everything. "The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw
