ICON’s advanced algorithms give it brake light like functionality. Using a built in sensors it will increase its flash pattern and brightness as you slow down coming up to a junction or roundabout.  The main thing to note is that ICON is not just a brake light - it is constantly monitoring your environment and will react to keep you more visible whenever you need to be seen most. These scenarios also include when filtering in traffic, when you cycle under some trees or a tunnel, and it will also react to approaching car headlights at night.