I think I’ll wait for the new version of M3 with USB-C charging and Ramping UI . Then I’ll make a decision to buy S21B or the new M3. or both of them ?
I hope Convoy will make Anduril an option for the new and updated flashlights. Also usb-c charger for as many as possible. Most will then probably chose Anduril.
The maximum output for the LH351D version probably will be a bit less than the Wukkos FC11 (FET driver), rated as 1300lm, but not very different. SST40 gets about 1600lm. Let’s say the LH351D output should be about 75% of the SST40 version output.
Edit: precise lumen measurements would require a well calibrated integrating sphere.
i have few 3V XHP50.2 LED in stock ,
I can also install XHP50.2 as you require.
It’s just that I personally don’t like the uneven light spot of XHP50.2.
There are many other COB manufacturers that are just as good but cheaper, such as Samsung and Citizen. There are super cheap Getian Opto-Electronics, but less efficient ones. I made a lamp on Citizen CLU048-1212 80CRI 3500k Verison 6 I really liked the light.
I also prefer the XHP50.2 over the SST40 for output and efficiency. One note though XHP50.2 must be at or below 5700K to reduce that yellow and green color aura. 5000K seems to be the sweet spot with an OP reflector with output about 20% greater than the SST40. If it’s only for throw then the SST40 all the way.
I need a 1500 meters thrower, 4500lm, 3000k, ramping, ipx7/5, usb-c and temp regulation with highest possible sustained lm. 1x21700 or 2x21700. Can pay 120 usd incl. shipping.