tm07’s FT03-NW tail amp test showed 9.15A (235,000kcd @10m).
In koef3’s (corrected) SST-40-CW-N4 test, 2000 lumens occurs at 6.8A and the maximum is ~2375lm at 8.4A. Perhaps this is where Astrolux got its “2400” figure, but it’s obviously an unrealistic number as the bond wires start failing at those currents.
nkresho’s NW light starts at ~1820lm (207,360cd at 20’ [6.1m]), which would be around 5.7A of emitter current on koef’s corrected chart, bearing in mind that the chart represents a CW-N4 emitter. Note that this is a rather substantial difference from tm07’s light, both with NW tints, though I don’t know which battery nkresho is using.
Do we have a general idea of how much is dissipated in the driver and wiring and how much actually reaches the LED? Many here are much more familiar with these circuits and emitters than I, so I thought perhaps there were some rules of thumb for different driver designs. As keof3’s corrected test was done with a C8 reflector, I assume it represents a reasonable estimate; the tint/bin would be bigger factors.