I think this was actually directed to me, so I’ll offer this comparison. Full size version here.
Here’s what this shows, left to right:
Sofirn C01 (Yugi 3200k for reference)
Emisar D4S (SST20 4000k 95CRI)
Emisar D4Sv2 (SST20 4000k 95CRI)
Sofirn C01S on low (SST20 4000k 95CRI)
Emisar D4v2 (SST20 4000k 95CRI)
Emisar D4 (XP-L HI 5000k ~80CRI?, for reference)
Notes:
Taken with custom white balance set at 4000k (Adobe Lightroom reported it as 4300k so take that for what it’s worth).
Shot against a pure white photo reflector, lights are about 6 inches away from reflector
Underexposed to highlight differences
Lights set very low (by hand, uncalibrated) which exacerbates color cast problems
So this is basically white wall hunting at its worst. In real use they don’t look this bad, but shooting this way shows the differences in the SST-20 emitters.
Thoughts:
You can see the original D4S is a little whiter than the D4Sv2
The D4Sv2 is a little greener than the Sofirn C01S
The D4v2 is somewhere between the D4S and D4Sv2, probably helped by the optics
Dumb question: Are those SST-20 in A120 package, i.e. (hopefully) replaceable with Nichia 219B? Do standard Carclo optics delivered with the D4V2 fit the 219B? Not sure if I should risk reflowing four LEDs at once (only did two emitter swaps thus far), but a 219B Emisar would be something.
The LEDs are XP-sized, or a 3535 footprint. This type of pad is compatible with all Cree XP-series LEDs, Nichia 219, and the SST-20… among others.
However, it’s strongly recommended that you use a weak battery and/or significantly reduce the maximum PWM value for the FET channel when using 219B in a direct-drive light like this. The 219B doesn’t tolerate direct drive from high-amp cells for very long before it turns into smoke.
And there is a similar configuration for locked out mode.
For off mode I use the battery indication mode, which I find quite useful. It displays blue aux LEDs as long as the battery is well charged, and after this displays green or even red.
Just for reference in case anyone else is wondering, I’m running a 60% FET max build on a FW3A with D220 219Bs without any issues and plan on running a 60% build on my D4v2 when I swap in a set of 219Bs. The 219 build variant posted in FSM is limited to 75% FET max iirc.
Forgive me if I missed this somewhere, but is this still an issue? I’ve noticed that my D4V2 Ti misses clicks sometimes. It’s kind of annoying when I try to unlock it, but instead change the aux mode. I love the light (and Anduril) otherwise, though!
I’ve noticed what may be considered a bug in Anduril. It occurs with my D4v2 and my FW1A. The issue is related to shortcutting to turbo from a ramping mode and then shortcutting back to ramping from turbo.
If the light is on at an arbitrary ramping level, a double click switches to turbo and then a second double click returns to ramping at the level it was last at. This seems to be the behavior regardless of the ramping level.
However, if I double click from off to shortcut to the highest ramping level, then double click a second time to turbo, and finally double click a third time to return to ramping, it sends me to the default ramp level (the single click from off level) rather than back to the highest ramp level from which I came.