Thanks to Knight_Light's review and opinions, I decided to take advantage of the July 4th additional reduction and ordered the Wizard Pro (70:120). Like some others, I too own, and very much like, the Zebralight H600w and was anticipating comparing the two lights. The shipping to the east coast of the US from China was very fast and my light arrived today, July 11th, ordered on July 5th. Unfortunately I only received the light; the 18650 battery and associated charger were missing from the shipment. I've already contacted armyTek's customer service so I'll be able to report first hand how well they resolve issues.
Like several others I assumed that armyTek's specs were OTF when I purchased so I was a little disappointed to find out otherwise.
The shipping company used was FedEX. Another lesson learned, at least in my case, was that I needed to sign for the package. I tracked the package using the provided tracking number but I wasn't aware that a signature was required so the package was not left at my door (I picked it up myself after work). I don't have a problem with this but thought I'd give a heads up to others so that they can avoid the same experience.
As far as some early impressions of the two lights side by side:
I've swapped (many times) the only 18650 battery I have available, an EagleTac 3100mAh, between the two lights and did some comparisons.
The beam profile of the Wizard is noticeably more "floody", and the H600w has a more noticeable hot spot. Because I only have one battery available I'm not going to comment on perceived brightness between the two lights. I'd prefer to have both of them powered simultaneously before commenting on that aspect (will probably swap batteries back and forth for those tests to see if there is a perceived difference). Even then I will not have any way to accurately measure the brightness; it will only be perception, and possibly photos.
One thing I notice about build is that the Wizard is more substantial than the H600w. This became apparent when doing the many swaps of the battery - there is more heft in the Wizard, but it is only slightly heavier. In winter I run with the H600w on my head so time will tell if the added weight is a distraction - gut reaction is I do not believe that it will be too heavy for my use.
The switch on my Wizard is much stiffer and requires a good deal more pressure than the H600w. I am used to and like the switch of the H600w but for full disclosure must also say that it has been accidentally activated in my pocket on multiple occasions - sometimes on high - and I definitely know it's on when my upper thigh begins to cook. I haven't carried the Wizard around yet but my impression is I don't believe accidental activation will happen in my pocket as often, if at all. I'm aware they can both be locked out from the tail cap, and that the armyTek has the feature that if the button is pressed continually, it will cycle through its modes and then stay off in case of accidental activation, and I verified this.
While running both at their highest setting for taking some photos, the H600w became noticeably warm to hot (by design, and no surprise), but was on for less than 3 minutes (the time at which my H600w automatically step down). With the same general use, the armyTek got slightly warm at the head but definitely not as warm as the H600w. Note this was definitely not a scientific test, nor was a timer used. It was an observation made while I simply went about swapping the battery, turning the lights on, shining them around, and taking a few photos - just putting the lights through their paces.
When I have multiple batteries available I'll try to take comparison photos and post the results, and I'll also report on armyTek's customer service. Fingers crossed on that one.