I am not positive when these were released, as for the last few years I believed these to be the same pencils as the Swiss Fluorescent Limited pencils.
Then in August 2025, another collector told me that these are different from the Swiss versions. By this point, they had apparently been discontinued and were hard to find, but I finally got my set.

Once I got these, I find that under the clip they all have a Date Code of 2K (November 2022), so my assumption is that they were released in early 2023.
Here is a photo of one of these side-by-side with the original Swiss versions and the Japanese versions.

As you can see the Swiss version on top is a brighter matt Orange vs the Japanese being a shiny Orange. This is due to the Swiss versions being molded in white, then painted the appropriate color with a matt finish. The Japanese versions were molded in the appropriate color.
P205-FFR Neon Orange

Neon Orange with silver text.
Barcode (Package): 4902506414816
P205-FGR Neon Yellow

Neon Yellow with silver text.
Barcode (Package): 4902506414830
P205-FKR Neon Green

Neon Green with silver text. As opposed to the Swiss version which was very close to a yellow, the Japanese version is very distinct from its yellow counterpart.
Barcode (Package): 4902506414823
P205-FPR Neon Pink

Neon Pink with silver text
Barcode (Package): 4902506414809