I have to agree with 12151. I have the X-Ray sights on my P365. They don't compare in brightness to the Siglite sights on my P320
pistols.
However since I consider the size of the P365 as well as all my similar size 9mm pistols are garlic breath distance SD pistols so the sights don't play a significant purpose.
In my personal experiences SD situations are up close and fast, very fast.
The X-Ray sights aren't bad but I've found the Siglite sights if the pistol is laying on a table across a dark room__ those Siglite sights show up big time.
Stay safe
Poli Viejo