What is the opinion of Reddit about the
Dungeons and Dragons D20 Color Changing Light – Officially Licensed Wizards of The Coast Merchandise?

I gotchu. just looked up d20 lamp and it seems to be the official one because I can see the logo of it in OPs pic when I zoom in

Have found it on Amazone (De), probably works for all of Europe:

https://www.amazon.de/dp/B08467TGF4/ref=cm_sw_r_cp_apa_fabc_vf85FbXNWQ7K2