This is a good deal, the mod was clean and I’d point out that the output hardly dropped from the stock T6 to the T5 neutral. Down from 660 at start up to 640 OTF if I remember correctly.
Also, the neutral tint is a noticably warmer than it appears in the pics, a good 3C tint.
The included (I’m assuming it’s included) UCL ground mineral glass diffuser gives a beautiful flood beam too, while stock it has good throw. So two beams for one price