We have observed the lights flash patterns and identified in detail how each mode reacts :

Normal: Each LED flashes separately and will then flash brighter and more frequently when reacting

Twin: Each LED flashes in sync with the other and the flashes get brighter and more frequent when reacting.

Burst: Similar to normal mode, except each LED flashes for longer between turns. When reacting the flashes become brighter and quicker.

Flash: One LED will remain solid, whilst the other LED will flash when it reacts.