3V is particularly relevant here due to its very high output (2600lm or so). Typically, once you get meaningfully above 2000 lumens, emitters are more and more likely to be 6 or 12v or use multiple chips. The only real exception that’s popular is the SBT90.2, but it’s problem is cost and that it requires way more power than most lights can maintain for more than 10s of seconds.
This emitter properly fills the gap between the W2 and 90.2, and is in the same realm when it comes to throw. W2 probably still edges out a win, and definitely it’ll fall short of a W1. On par with a 90.2 at 25A
Another reason so many of us are excited about this, is that unlike the old XML2, the SST40 was near impossible to fully dedome. So after many many years, there is finally a 4mm² LED truly domeless that could meaningfully outpace the original high amp XML2s. Yes, the XP-L HI did a fine job most of the time, but the Vf was high so it was hard to max them out in the real world.
Would it be of advantage in low-amp 16340-lights lights like Olights S1R*? They used to use XML2 and now, starting with the Baton 3, the SST-40 if I’m not mistaken. Also, the V11R could use a domeless LED.
It looks like Simon has the SFT40 back in stock. Based on sft40 flashlights are relisted again. Looks like he hasn’t updated his led section though.
Also the hype is well deserved! Just put one in my Convoy M1. It has a perfect Hotspot, there is zero Corona. I’m mean ZERO. this led will pull 11+amps with proper mnt fet driver.
M1 SFT40 MNT Fet vs M1 SST40 A6 driver, there is no comparison
Can finally chime in since a Convoy S21B with SFT40 has arrived. Without going into technical details (other posters already nicely did this), I was simply looking for a LED that can replace the SST40 and XHP50.2 without too much trouble. I have a few SST40/XHP50.2 flashlights (Astrolux FT03 and EC01) and I just can’t stand the egg beam. The SFT40 is the only easily available emitter that you can just drop in (5050 footprint as mentioned above) and have a clean beam. And now I can say it’s true. It’s very green on low brightness, but becomes a nice clean white beam at full brightness. Massive improvement and a worthy replacement! I’ll be getting some bare LEDs to swap out those SST40/XHP50.2
I agree. I really like the xhp35 HI gen 1…but those are long discontinued and supplies are drying up quick. Even the 35.2 HI is largely unavailable. Great emitter, but 12 volts needs 4S 0r boost driver.
I just got a convoy S2+ from Simon in the mail that has the SFT40 in it. It’s REALLY bright, and has a good throw. The temperature is probably around 5.5k if I had to guess. I’m happy with it.