Kuryakyn Diode Kit For Metric Bikes OPEN-BOX 4709

DIODE KIT FOR LED TRN SIGNALS. If this diode kit is not installed, power will backfeed across the indicator light and all turn signals will flash at once. One kit needed per bike. OPEN BOXYes. For use when installing LED lights as turn signals on a motorcycle with a single turn signal indicator light.

eBay