PRO-BLINK flasher relay for side markers. Any number of side markers can be connected to the flasher relay. Connected to the rear light's flash function and side markers. When the turn signal is activated, the side markers transition from steady light to blinking in sync with the rear light's turn signal. One PRO-BLINK relay is needed for each side of the vehicle. According to new regulations that started applying for new type approvals from 2017-10-18.
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