Slate Blue QK16L arrived Sat 27Feb21. Nichia 319A beam and tint are phenomenal, great transition from spot to spill!
Are the lumen specs actually the same as the black model? I don't have the black model but the 40lm medium from the slate seems a lot brighter than some other lights I have that claim to be in that range, both in a ceiling bounce and backyard testing. Maybe its the excellent beam profile and more light going forward unlike optics lights, but I'd guess the med to be more like 60+ lumens.
It's bright enough on Med that I would actually prefer that Med was dialed down a notch or two (20-30) and then add a Med/High ~100 lm level.
**EDIT** Box and instruction sheet says Med is 100lm but the website says Med is 40lm. If is actually 100lm with proportionately shorter runtime then frankly I fell mislead. I do think there is way too big a step from Moon to med as it is. I passed on the Kickstarter because of the 100lm med.