Is there a possibility that Hank considers producing a 21700 tube?
I’ve been EDCing my D4 219C lately and the only thing that bothers me is the heat at max level, with LH351D and larger body it should perform pretty amazing. We should persuade Hank to make it into an emitter option.
I’ll have to thank Hank for sending a black-colored light for photography purposes. Those are always the easiest to get good pictures of.
Also, it’s cool white. So I’ll want to swap the emitters. And it has no O-rings, so I’ll probably transfer the rings from the dev prototype. And no label on the tailcap.
So it’s not quite a production unit, but it’s pretty close.
Awesome review TK, it seems every time I decide to slow down on buying lights along comes one like this D4S that just can’t be ignored,
This light is spectacular and your pictures really confirm that,
I can see where the pricedrop comes from. The other two I’ve gotten was cleaner on arrival.
And seemed more precisely made and cleanly cut.
The white one seems a little “Chabuduo”
This looks like it came straight from the mill. No lube on the threads, and tons of milling leftovers.
Five minutes later it’s cleaned, lubed and taken to the workshop for some sanding. P160 grit and now it’s silky smooth.
On a side note; the new white one felt lighter, so i measured them.
(without tailcap, as the older ones has a magnet glued on)
Black XP-G2 S4 5D (V1): 59,28g
Green Nichia 219CT: 59,84g
White Nichia 219CT: 58,08g
But then again, despite all this, at $35 it’s still a friggin steal
That’s the first thing I noticed also since I was switching batteries to my white one from my blue one. I wonder why that is
P. S. It took two weeks from date of order to my door here in New Jersey USA good work Hank. That makes number 10 or 12 or something got my finger on the button waiting for the D4 S
Would like to add one little thing. Yesterday i wanted to flash another firmware to my new white D4. For some reason the MCU would not read-write. after multiple attempts a tried a Q8 driver, same chip. It read on the first try.
But i could not read write anything to the new d4 driver :cry:
I found a couple references to low voltage protection in the OP
Wondering the one you gifted was V1, and perhaps that version did not have it? It looks like several people wrote about experiencing low voltage protection in their D4s.
Failed LVP sounds very strange. I’ve tested it using a bench power supply, and it has always functioned correctly. I also actually managed to run down the battery a couple times and LVP did what it was supposed to. Usually I recharge the cell at about 3.3V, but there have been occasions where I used LVP instead.