https://www.aliexpress.com/item/4001119634737.html
Fact, over enthusiastic marketing,or lies?
No, XHP90.2 doesn’t exist. There are fair quality Chinese emitters at this size though.
What do the equal? XHP30 ?
The light with the 3xXHP90 is the most expensive. That could be understood as it is brighter that the 18xT6.
BTW I wonder 4 cells can power 18xT6 at a reasonable brightness…