I ordered 3 of these, and have modded all 3 in the last hour!
2 with XML2 @ 1.4A, as lights for my daughters to use whilst walking the dog, and the 3rd I’ve also equipped with an XML2, but with a 2.8A 105c set to H/M/L.
With 3 fresh eneloops they pull 1.38A, and 2.75/0.80/0.10A respectively.
At 1.4A there is ample light, and runtime should be respectable. At 2.8A the thermal path will need improving!!