Two days ago I received, late at the party, my Fireflies E07 from Neal, black, purple aux leds, SST-20 4000K. It appeared the updated version with slightly bevelled edges.
It is as beautiful as in any of the pictures I had seen, and an extremely handy size. And my first Anduril light, still have to play around with all the options. The SST-20 works very nicely in this optic, it makes a pleasantly distinct and, for this size little TIR’s, reasonably narrow hotspot.
To swap a few leds I opened it up, and although the optic had all its legs, it was not perfect inside: one screw completely worn out (these screws are made of very soft steel) and extremely short ledwires, I had to (un)solder very carefully to not strip any further of the insulation and risk shorts. The ledboard sat completely flat on the shelf and there was enough thermal gooey.
To improve the tint I swapped 3 of the 4000K leds for 2700K ones from KD (their so-called JA3 tint that measures exactly like their JC1 tint ). I hoped to end up at my favorite CCT, 3500K, and up/under the BBL.
This is the result.
First for comparison the tint of the original 4000K SST-20 (measured from the Sofirn C01S, same size TIR, forgot to measure the stock E07)
Great tint IMO, but with a duv of 0.0031 it is a bit above the BBL and it has the well-known slightly green hue without any rosiness.
Then the tint from the 2700K led, as measured in the hotspot of a reflector (should be comparable)
And here’s the result for the mix, almost precisely where you expect it (E07 at 170 lumen, so about 600 mA distributed over the 7 leds):
Almost on top of the BBL and also by visual inspection a really pleasant balanced tint (although not pink, but I do not appreciate too pink tints).
To my surprise this mixed flashlight has a consistent tint going to higher outputs. Here it is at 1300 lumen (default top of the ramp):
And at turbo 4000+ lumen:
All in all, I call this succesfull and I have added a very nice flashlight to my collection that was immediately useful yesterday when I went out in the dark with BLF-member Nicolaas for some thrower beamshots. It lit up the trail very nicely, although at turbo, the 3300K is a bit too warm to my liking (on all other levels, 3300K is perfect).