Yes, they didn’t ask. I do not know what to answer …
I think you did, it’s in your reports:
And here it is plotted in “ColorCalculator v7.73”
This is about as green as the sun. But from other threads I know some members consider that unbearably green.
Heck, another member mentioned about a month ago they were trying to get the BBL standard lowered because they thought they had research supporting their claim the BBL itself was greenish. But that research seemed to be using “Fake White” RGB lighting.
I bought for test leds from SOLs manufacturer. Without violet. It is vita white and original white series.
SOLs
I hardly doubt it is a galvanic isolated driver (propably some kind of flyback topology) so in this circuit this inductive component works more like coil/inductor not transformer.
No, I can not wait! I just send this lamp today. World must know this thing (190g weight)
2700/3200/5000/5600/2700+3200/5000+5600/2700+5000/2700+5600
/3200+5000/3200+5600/2700+3200+5000/2700+3200+5600
/5000+5600+2700/5000+5600+3200/2700+3200+5000+5600k
SunLike10xss
It can be my last lamp. I am going to escape from the MORDOR. I just get passports.
Wow, that’s a lot of switches. It’s going to need a user manual 
Adam, you are spoiling the surprise! 
PS: I understood you were Russian and presented your shop as such. Sorry for that, my bad.
center 2pcs:
in one way - cold
in another way - warm
in any different ways - neutral (cold + warm)
left 2pcs:
in one way - cold
in another way - very cold
in any different ways - not so cold (cold + very cold)
right 2pcs:
in one way - warm
in another way - very warm
in any different ways - not so warm (warm + very warm)
doy understand me? do you?
I know. But I think that not for all. Not so much people read this topic.
No, not Russia. Nein! Nein! Nein!
Belarus, Ukraine. Rus language was in all CCCP countries.
Aaah! Ukraine. Here is some crazy fellows from Ukraine too:
Source thread: Testing 18650 Safety - Russian Ukrainian Style
:-D
According to Energy Star these two smart bulbs are CRI 91-92 R9 = ~50
https://www.feit.com/products/bulbs/smart-wifi-light-bulb/smart-wifi-bulb-color-changing-tunable-white-3/
https://www.feit.com/products/bulbs/enhance/smart-wifi-bulb-color-changing-tunable-white-2/
They are RGBW bulbs and the white can be tuned from 2700K through 6500K.
“Costco has the ”60W”“:https://www.costco.com/feit-wifi-smart-bulbs%2C-4-pack.product.100417461.html 4 pack on sale for $30 - very tempting
I saw on post #107, Adam, your PCB layout was marked “CCCP”. At least in the USA, and especially the generations older than me, that can trigger political feelings. I wouldn’t recommend it for the next batch of PCBs. Sorry.
But on a happier note, I was wondering where you were escaping to? I assume it’s a vacation destination?
I'm not sure I understand what you're trying to say.
Will the drivers have problems? Because I added 4 × 15µF to a Qihan 1500mA output driver and its working fine, many weeks already.
Using some simple linear power supply calculator looks like the power factor for the QH-40W-LP driver I posted above, when loaded with ≈24W, as a rough estimate drops to 65%. Just rough guesstimation, of course.
Capacity 60uF is a small value for LED driver of this power. Adding capacity to output usually, except smoothing output current and changing PF (to one side or another), generates also greater current surges when switching on, unless there is a soft start (e.g. NTC thermistor). Current surges if you overdo with the additional C may cause a fuse activation or damage the rectifier bridge, etc.
Adam, what is your emigration direction? Maybe Ithilien? Come, we will establish a global corporation producing the highest quality LED bulbs :smiling_imp: .
Joshk
I’ve lived in a socialist country for almost ten years of my life. Thanks to this “brilliant” political system that the Soviet Union has funded in this part of Europe, we are still economically backward and poorer than western countries, So I also do not like the CCCP mark on the PCB layout.
Sorry if it seems confusing. I meant to say because I added 4 × 15µF at the input to a Qihan 1500mA output driver and its working fine. The capacitance is added at the bridge rectifier's output.
The Dark Energy 600mA 20W max driver I posted above uses 25µF capacity at the input, so I thought slightly more than twice would be fine for the aforementioned 1500mA 50W max Qihan unit, it is running with just ≈30W of load anyway.
I understand the rest Bocian, neither NTC nor fuses here. You really, really have to overdo with capacitance for the bridge to get screwed. Thanks for pinpointing the NTC as inrush current limiter thing. 
1uf for 1w
But then, shouldn't the Rostest's seal of approval have superceded it?
13w (real) led bulb with this (right side) led driver was marked CE and РосТест (Rostest)
so?
s.
As my friend said: “все хотят качества, а когда видят клеймо качества - обоссываются. абсурд!”
“everyone wants quality, but when they see the brand of quality, then they are piss. absurd! (nonsense
!)”
The quality of products made in the USSR is / was legendary. Most people were poor (except people associated with the political party) so if they were buying something, it had to work for many years.
In Poland, that time, was joke about products made in the USSR (сделано в СССР) “gniotsa nie łamiotsa” what means: It may bend but not break 
Sorry for offtop.
btw. there are also 2835 version of SOL leds 0.2/0.4W
sample datasheets:
wow… “world government passport” is it really useful?
P.S. Kudos from UA. Do you sell/ship DIY parts from within Ukraine?