Have come in contact with two types of lenses on these Luxor taillights so far. I haven’t, either, seen any evidence of more types from any photos online. This leads me to believe that there are only these two. There is the Snowflake type, which is primarily just a piece of red tinted curved acrylic with a triangular geometric pattern in the center. This lens doesn’t do much to shape the light, you can see the light source clearly through the lens. It is very stylish.
The Concentric Ring type, however, shapes the light dramatically. It diffuses the light through concentric ridges on the inside of the lens and the center point of the design is almost akin to a magnifying glass. Because of its dome shape, it has great side visibility without being dazzling, but if you are directly behind it in its sweet spot, it is bright indeed.
As you can see in the beamshot to the right, it is a relatively tightly focused beam of light. Note the square feature in the center. That is actually the the shape of the LED emitter, the lens is focused so that it is showing that.
Below is both lights on side by side. With the snowflake lens on the right, you can see the bright spot where the LED is, and the geometric pattern diffuses it a little, but its nothing compared to the one of the right, where it looks like the whole lens is glowing.
I’m looking forward to hearing field reports on this light to get some impressions from other riders.