The M6 2390 has indeed been upgraded to a Cree XR-E, although the bin is unknown since Pelican doesn't state it. I was at Pelican's outlet at Ubi Crescent and had a very good look at the 2390. It's definitely a cree, and because of that, the reflector has been redesigned and is now more narrow i.e. instead of the reflector running all the way to the edge of the bezel, it now ends inside the bezel like the early Fenix L/PxD lights, with a metal ring taking up the extra space (or maybe it's just the thicker wall of the LED module).
In terms of brightness, it is impressive. I compared it to my P3D Q5 on turbo (215 lumens) and it is just slightly dimmer, about the same as the L2D Q5 on turbo, so I guess it's probably close to the 180 lumens stated by Pelican. Not so impressive, however, was the price of ~S$239 (~US$160) :eeksign:. I can get a CL1H V4 1S WC Q5 for just US$76 :twothumbs, easily upgradeable when new emitters arrive, and probably just as durable as the 2390.