I used it on my ST-1100 and I believe it will work on any bike having a single brake light. Rated at 5 Amp. Very easy to install, simply cut one wire and it goes in series. The unit measures 3" X 1.5" X .5" and can be installed anywhere by extending the brake wire. $20 delivered in the US.
When the brake is applied the unit flashes the lights in rapid succession then flashes at interval.