Don’t worry, the 3-channel driver is nice but also overrated. Sure it is a nice thought to have it in your light, but the slight efficiency gain you get in medium modes will not be noticable in your runtimes.
I seemed to notice that my FW3A goes for longer at the maximum regulated ~800lm level than my D4 at the same sort of brightness. Is this most likely because I just keep overshooting and ending up with 1000lm+?
Anduril will surely make it a lot easier to know how much output we’re getting. So glad it’s now included on Emisar’s newer flashlights.
Are external dimensions the same?
I think that magnet addition would increase the length (even for those who don’t use it) which would be a small step back…
Hank mentioned 3mm extra of the tailcap because of the magnet, so I guess overall length is 3mm extra.
I skimmed through the thread too quickly to notice. Thanks djozz!
I wonder if V1 tailcaps are compatible with V2 tubes…
Wil the Ramping IOS V2 be there as a optional choice? Not everyone likes Anduril.
Im soo interested.Cant hardly wait.
That is a good question, though from my experience I have found Anduril to operate just like Ramping IOS V2 if you only use the relevant button presses.
I have found the simple shortcut to directly ramp down instead of having to guess the ramp direction to be an incredibly useful addition in Anduril however.
Has it got reverse battery protection now ?
I’m going broke before the end of the year… 
I compared both my D4 and FW3A at step 130 which is full regulation for the FW3A. My D4 stepped down 2 minutes later than the FW3A with the same thermal config. (the FW3A has a slightly newer Anduril build though)
I guess more thermal mass and running the emitters in a more efficient zone has something to do with it. D4 is SST20, FW3A is XP-L HI, so I expected the FW3A to actually go longer if not near exactly the same.
I really need to crack open my D1 and flash it. RampingOS isnt bad, but I would like most of my lights to be consistent.
For sale, ship before the end of this month.
https://intl-outdoor.com/emisar-d4v2-high-power-led-flashlight-p-940.html
That’s not entirely true, there are significant differences.
I appreciate both, but I think I also prefer ramping iOS.
It just feels snappier and simpel.
Where can I choose aux LED color? Would also want a 21700 tube.
Red, yellow, green, cyan, blue,magenta, rainbow aux LED options is selectable through config UI, as well as the voltage indication function. (6 fast clicks and hold the 7th to choose the aux LED options, 7 fast clicks to choose the aux LED modes)
Any chance you could show us what the PCB with the aux LEDs looks like?
$45 base model. That’s a good price.
D4 is bound to be among the top recommendations around here for another year. 
The led is nothing special, not much bigger than a single-colour aux led. But you have to adress the three colours separately to do the colour mixing and get those different colours, so the aux board and MCU must support that (occupies more pins).
Leds must be something like this:
Order placed as fast as my clicks would allow me!
2 x D4v2 coming my way!!
Thank you Hank! Lookinf forward to the 21700 surprise (hopefully a 7 LED competitor to the E07 wink wink)
1 Thank