Universal Smart Triple Play - Run Brake Turn Control Module model-Vulcan 1600 Lamps sold separately

Lamps sold separately

and will blink the lamps off anytime there is voltage on the turn signal input

and the following matches your situation after changing them:

installation of the Custom LED 2018-2021 Ducati Multistrada 1260 Blaster-X Integrated LED Tail Light is detailed in the instructions below

Lifespan: 50

Universal Smart Triple Play - Run Brake Turn Control Module model-Vulcan 1600 Lamps sold separatelyUniversal Run Turn Brake control module that works with LED or Incandescent tail lights. Allows two rear turn signals on vehicle to function as running light, brake light and turn signals. Built in 10 pattern brake modulator for center tail light, or turn signals, or both during brake light operation. Slim line compact and water resistant construction 4. 2" x 1. 4" x 0. 6". Comes with detailed instructions and simple connectors. *CANbus and Cruise