For the diesel motorcycle project I wanted to save space for the central wiring cluster in the main beam lamp housing. Thus, the turn signal relay was replaced two electronic relays with integrated SMD LEDs. They go into the bar ends using a Hella bar end signals.
The original bulb with holder is replaced by a printed circuit board, that holds the electronic turn signal relay with the white SMD LEDS:
When 12 V DC is applied from the turn switch, the LEDs start blinking. The double sided PCB with 4 white LEDs on each side, looks like this to go into the Hella turn signal housing: