A player (who wishes to stay anonymous) kindly sent me some screenshots of the light patterns thrown by the Cycler. Ive combined them for easy reference and comparison.
With Titles

Without Titles

It is clear that the current Preview doesn’t do this item justice.
I assume the light intensity gradually fades over longer distances. As these full patterns can only be seen when the Cycler is in mid-air and beamed onto a wall, I additionally request for furnishing Previews to allow for Z-axis (vertical position) options with walls, or as suggested by
@LunaFlora, to allow for custom Preview Placement in some 3D in-game environment (like the default empty tiled room).
Alternatively, ZOS can consider doing marketing videos to showcase furnishing & cosmetics, this is common practice in many games - they are helpful in deciding on the value proposition (eg Standard vs Extra versions of games), and I am somewhat surprised that ESO doesn’t do this.
(Please don’t say “you can just Google X for Y and watch a video on Z”, Previews should be basic features in-game.)
Edit: spelling, and additional suggestions.