I just got info from Jacky that the MCPCB is 20mm x 1.6mm but there is room to fit MCPCB with diameter less than 21.5mm. Therefore the Virence VR21SP4 should fit nicely for anyone interested in modding this with the quad E21A.
Ah. I think I'd had the thread open since before you posted that picture. Yeah, 3500 is ridiculous for a single emitter... and so is the rating of 2300.
Yeah. I doubt it will even be remotely tolerable. To go with the form factor, I think an sst20 with a 50E charged to 4.1v is most appropriate. (Throwy EDC)
I’m holding out hope for a triple e21a board coming about for the FW3A. I think that’s a great match there. I’m really not in the max lumens camp. 1200 OTF is plenty. Just wish we had some good buck drivers…