interested only if sst20 4000k is available depending on price. EDIT: also interested if Nichia or xpl-hi 7a are available too.
EDIT: i just reread the listing "no need to express interest, just discussion".
I think as long as the "kinks" are worked out of the driver that i've read about on blf (aux lights glitching, reverse polarity protection included, etc) then this could be great.
I would be willing to pay a little more than the Noctigon KR4, which i think would the closest equivalent, because this fw3x will have a superior driver. But what is it worth? the KR4 is US $55. I think in the $60 range. I don't know enough about driver costs to know what it would be worth to have a buck driver of this caliber in a $40 light. I do know that i just bought a couple FireFlies E07x Pro, with 7 LEDS (sst20 4000k of the highest bin = FA4) for $78. And that has aux lights, takes a 21700, comes in multiple colors, and has (i think) a Loneoceans designed buck driver. Not to say that the E07x is anything like a fw3a, just saying there is precedence for a market value here.
So i think it should be under $70 for this light. in my opinion