ELECTRONIC HARNESS CONTROLLER
Brand: THUNDERMAX
Allows a dual-filament bulb to be used in three ways: tail, brake and turn signal (excluding the need for a center brake light) includes ribbon cable for integrating generic indicator lightsPerforms all fuse, relay and signal-canceling functions in one simple packageWeather-resistant connections for trouble-free use in extreme environmentsTrim-to-fit harnesses allow installation on most custom bikesCompact design makes it easy to hide on a custom motorcycle
https://shopping.truda.io/product/electronic-harness-controller
Allows a dual-filament bulb to be used in three ways: tail, brake and turn signal (excluding the need for a center brake light) includes ribbon cable