Update October 9, 2019:
This project will not be realized - so this thread is closed now. Please express your interest in following thread, if you are interested into the alternative flashlight project (project title "Sofirn C01R"):
https://budgetlightforum.com/t/-/58847
Explanation:
I have talked to Barry (Sofirn) and he discussed the idea about the SP10/SF14 with XP-E2 red/deep red or XP-G3 deep red with his engineer. At this point of time, they have doubts that the boost driver might be able to kill these sensitive LEDs, if not immediately at least regarding a long-term perspective. My modified SP10 and SF14 do run fine with XP-E2 red and the default driver settings originally applied to the XP-G2 LED but there's no guarantee as its being a bit overdriven i.a.w. the specs sheet. Developing a whole new driver wouldn't be reasonable for a small-size batch of 200-500 pcs, though.
Anyway, Barry had the great idea to use the C01S host and driver to run the XP-E2 red with. Since C01S uses AAA cells with 1.2V - 1.5V it should be able to handle the sensitive XP-E2 red much better. As XP-E2 is even smaller than SST-20 chances are good to get a nice hotspot with usefull throw of red light. I'm not sure yet if Sofirn would consider trying XP-G3 deep red for more lumens output and less intensity. Eventually, it's a also a matter of cost and technical limitations as the dome must fit underneath the C01S optic.
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Hello everyone,
Since Sofirn’s SF14 V2.0 (tailclicky), SP10 V2.0 and SP10S (e-sideswitch) AA/14500 flashlights are very successful I am thinking about asking Sofirn for a small batch (500 pcs) of a red light version with XP-E2 red (620nm wavelength), called SP10R or SF14R, and/or XP-G3 deep red (660nm), called SP10DR or SF14DR.
Both emitters fit nicely into these hosts and should perform well without any problems. While XP-E2 red has a small die area leading to a tighter hotspot and a bit more throw of red light, the XP-G3 deep red comes with a larger die area, a bit more power/lumens, less throw and a „deeper“ red (660nm) in comparison to red (620nm) which looks a bit more orange-red.
Djozz has already taken a look at the new XP-G3 deep red and his first feedback sounds promising. :-)
Both LEDs are available at Mouser and Cutter. Sofirn has already implemented the XP-E2 red in Wurkkos‘ WK30, so they should be able to source some additional quantities.
How do you like the idea? Are you interested?