Let me raise an issue or question.
It seems to me, the lights presented above are meant to help you see, not to be seen. They are designs tailored for off road riding at night. They are really high powered lights intended to illuminate the surface so you can see it. That differs from a light which is intended to make it so people can see you.
The difference between the two can be not-so-subtle.
Is it possible that the ultra-bright flashing tail lights will go too far beyons merely being seen by drivers to the point of irritating them as they sit behind the wheel of their 4,000 lb mobile bludgeoning device? Do urban riders need all that power, or is there a better compromise for the urban commuter?