The Kisan Signal Minder is the one I have used for years. Built-in options such as Running Light Conversion, allows you to convert all the turn signals to running lights. More importantly, it also converts a single handlebar switch equipped bikes into a dual channel system. And that gives you 4-Way emergency or Escort mode flash. And if you hook-up the brake input, you can get the brake flash feature with built-in override when stopped in traffic. All that and it cancels your turn signal. https://www.kisantech.com/index.php?cat_id=4
I put these on all my bikes. They work great and they are a nice added safety feature. Although I have a different brand they all basically work the same. Once wired up you can adjust the speed and the time length of the stopping flash.
Any options is a good option especially when it comes to safety.