The TK75 will handle heat a lot better than those other lights in a flood Spec.Thanks again, ven, for your informative post.
I emailed Vinh to ask about availability of this item. I am going for max lumens, which will necessitate using only one battery carrier with the carrier mod, and non diffused domes on.
This item has a bit less throw than the K60vn dome on, and less throw than the MX25L4CvnT XPL pdt DriverVNX2.
This item also has some more throw than the MX25L4CvnF DriverVNX2 XHP50 diffused dome and also a little bit more throw than the M43vn Goldilocks, in a package that is a little bit larger and a little bit heavier than the above four mentioned lights, without being too much bigger/heavier than those lights, but with oodles more lumens and wide beam.
Such qualities should be a nice addition to my collection.