Of course, this value can be used only a few minutes, because then the electronic (overheating) attacks protection and scale down the lamp at about 400 lumens. If the various recent reviews you look at FENIX products whose values are quite credible - unlike some cheap products.
The quality of case is as with all my FENIX lights performed flawlessly. For me, just the FENIX products an example of that from China, of course, very high-quality and sophisticated products can be obtained. What surprised me the comparatively broad and enormously uniform light cone, the emitting light. My older models of the same manufacturer TK12, TK30 and PD30 have a much more centered and less 'clean' illumination. As a significant improvement, I also see the side located behind the lamp button switch of light levels - beneficial when compared to the earlier place at FENIX lamp head-turning orgies.
As usual, the lamp comes with holster, spare sealing ring and 2 lithium batteries - which many buyers of such a lamp is rather pick up the 18650 battery, the works also without problems.