They do.
However, the only source I have found of 5000k 90CRI+ emitters in small quantities is Digikey.
Is there a reason you donāt want to go to a lower temperature like 3000k? To me if Iām camping I want something close to fire light and as warm as possible.
Candle/fire tints are around the 2000K range, I had one LED of that tint, but found itās tint to be very yellow/orange, (close to that of a fire flame) and seemd to be somewhat not very efficient for higher outputs. I have a few Strawhat 5mm LEDs of the 2000K candle tint range that i swapped on some nightlights as they give that candle glow effect, but seems to be to yellow for a brighter lantern. 3000K is what is in the V1 prototype now.
Agree that 2000 would probably be too low. Iād have to see it in person but from the prototypes I kinda like the 3000k over 4000k photo. Totally understand that the 4000k will have more brightness overall though.
UPDATES: - I will be leaving on June,6th to drive to NovaScotia & Newfoundland. I have the prototype lanterns packed up, with the tools to do LED swaps & testing while there during camping trips. I will also finish the design cross-section drawing for the new lantern to send to Thorfire too there as i will have my laptop with me. Will post the drawings next week here for everyone to have a look at before i submit them to Barry at Thorfire to begin the work to get it rolling 
Have a great and safe trip DBSAR! 
Looking forward to the next round of field results.
Man, trip after trip. You, Sir, are living the good life. I envy you. Enjoy and have safe trip.
Iām in for 2
Enjoy your trip, and take a few photos of your mobile modding workspace! :+1:
added to the interest list at 822 and 823
Again USB Type-C:
Memorandum of Understanding on the future common charging solution for smartphones
_USB Type-Cā¢ to be the common charging interface for
other types of portable electronic equipment as mentioned in the Radio Equipment Directive 2014/53/EU (article 3.3a).
In furtherance of this end, signatories agree to gradually transition to the new common charging solution for Smartphones based on USB Type-C._
So maybe v2/batch two of the BLF Lantern could be equipped with Type-C port Donāt have to be USB 3.x electronically.
But support for programming with software would be a nice feature.
Itād be awesome to have a usbasp inside, connected to the MCU for easy reflashing over USB. I donāt think itāll happen though.
Maybe a later version can use a beefier MCU with USB support built into a bootloader, and reflash directly over USB. Thatās not attiny territory though; itās more something I see on atmega chips.
USB c sounds good, but I think that a normal micro USB 2A connection will be fast enough for the intended purpose of recharging the lantern with a small solar panel while you are camping. If you need to charge it faster you could still take out the batteries and charge them externally. Also I donāt know if many people would use usb programming because our current firmware seems to be nearly perfect.
Cool idea, but considering how few people would use it - Iād say itās unnecessary cost.
Itās just about the physical connector - no need for USB 3.0 protocoll or QC/PD.
And a firmware has no GUI and canāt show at once all settings/options.
Iām in for one
Indeed, I added you as #824 on the interest list.
Iām in.
Been away from the forums for a while. Check this thread and holy crap is there every some awesome progress. Iām loving what Iām seeing so far. The possibility of tint shifting is really exciting! Seems like no matter what this will be a really great light.