Meaning of the Dutch demo-board:

Click on the lamps to activate.

Extra opvallen bij remmen = Extra conspicuity when braking. Saves you the last minute.

Alle signalen uitzetten = All signals off. (running-lights)

Begeleidingslicht = Accompagniment light. (most conspicuous)

Racepatroon = Race-signal. (least energy consuming)

Alertsignaal = Alert-signal.

Filesignaal = Traffic-jam-signal (also when fog).

Alarmlichten = Hazard.

SOS-signaal = SOS-signal.