Needs work.
I bought the Hornit primarily to warn off dogs and dog owners. I’m still evaluating this aspect.
The mount has a Garmin style half turn mount. The factory mounts work fine but because of very limited handle bar space, I want the Hornit on an out front mount and tried to use a real Garmin mount. The opening on the Garmin is a bit too small which would require me to trim either the Hornit or Garmin. Products by K-Edge, which are all aluminum are compatible but more expensive than the Hornit.
I have yet to test the Hornit on an aggressive dog.
Forget about actuality warning a car driver unless the windows are down and the music is off.