I dunno. Maybe it isn't a XP-L after all. Why is the make and model of the LED important, anyway? It certainly seems to be bright enough; if the tint is bad, just replace it with a premium LED that you're familiar with and don't worry about what the previous LED used to be.
Maybe it isn't important but rather a fun little puzzle to solve? Or maybe just to increase knowledge knowing full well you enjoy the product either way?
jon, there is no "plain" old XP-L. There is just the XPL HD and Hi. HD is the domed LED Hi is the flat LED