sorry about not answering sooner: yes, that seems the same bulb that I bought, and they changed the website a bit, so now you can only buy them in a 4-pack :-(
As an update: I have had that remote phosfor bulb in my hobbylamp for five months now, with on average an hour a day, but regularly evenings with many hours as well, and it holds up fine: gets hot but just works! I'm still very happy with it, it is great light to work with.
Yeek! this is a lot of emission in the blue-light-hazard range, for very little visible light benefit:
!http://cdn.shopify.com/s/files/1/0344/6401/files/11111111111111_90ad7e59-fe73-460e-811d-145291f0d0a8_grande.jpg?428
!:http://store.yujiintl.com/products/high-cri-led-bulb-10w?ref=yotpo_93
And don't go outside! Look at the blue-light hazard range emission of sunlight! 
Yeah, it appears they are trying to produce a daylight (blue-sky-yellow-sun) emitter.
I’d guess they are driving it with a violet LED (the 410nm peak) and phosphors that emit in the green-yellow range.
It’s that leakage down around 400nm that matters and they show quite a bit more than I’d want placed near my eyes when indoors with pupils wide open.
Sunlight, well, your pupils restrict the light (better with age) and your lens ages as well.
The older you are, the less you need to wear eye protection: lens yellowing with age - Google Search
The protection that your pupils provide fail if the ratio between near uv and the rest of the spectrum (especially green) is higher than sunlight, then your pupils are fooled and are more open than is good for you. In this led that ratio is much lower than with sunlight so your pupils instead do their job more than fine: if they are wide open, the 'blue hazard' is more than low enough.
hm, they say “-Full emission spectrum close to sun light” for the dual-LED strip
http://store.yujiintl.com/collections/high-cri-led-strips-ribbon/products/high-cri-high-power-led-hybrid-dual-color-temperature-ribbon-120-led-m-unit-5m-reel
Tempting, not sure how that description applies, maybe that’s with the blue emitters turned up full for the bluest color temperature.
I’d guess they’re talking about “daylight” meaning yellow sun plus blue sky, not just sunshine yellow.
Hi, I’m new here.
Take a look at this
A practise explanation about the differences between standard cheap 100w cob led VS yuji 100w cob led
fixing it up for you
I wish I could afford one of these light chip though
$83 is quite the price for a sunlight
I’d rather wait for afternoons
Hi, a little update of my experience with yuji leds.
I have bought four of them from their website (100w cob 5600k), total cost was 359$ , shipping was fast (with dhl, about a week ) and I didn’t pay any customs taxes because yuji declared that the total value of the items was 10$ , so they are trustworthy.
Wow, that was quite a purchase! I hope that the cobs will serve their purpose 
hank, check out Custom LED Spectrum Design by Yuji LED
Looks interesting, they may be able to formulate a phosphor mix for our after dark lights 
It would be nice to be able to use only a single led with the right spectrum & not have to use monochromatic leds or filters to block the unwanted blue & green parts of the spectrum.
I hope they can consider such an request, i do suspect it is really only for bigger commercial orders though, but they seem interested in the less populated part of the market with items like high CRI leds & multi temp led strips for example, so it may be possible to get them interested in the almost totally empty & hopefully future non blue polluting LED lights market.
I have’t asked them formally yet, but i will someday when i work out how to best propose it to them. If someone don’t beat me to it that is 
EDIT
Some of there products like the dual temp led strip would be perfect, for example a high CRI warm white & after dark spectrum LED “high CRI” or maybe full spectrum after 550nm is a better way to express it, or blue & green limited white LED perhaps.
> Yuji
Interesting! I filled out their inquiry form for their “custom simulator” software — which looks very promising.
Hope you will to — talk up BLF and the group design and quality control and group buy stuff people do here, and how it benefits builders/manufacturers who can go on with an improved product.
Maybe they’ll get involved.
It seems it’d be possible to combine a filter to block the critical wavelengths — somewhere in the 400-500nm range, roughly.
Aside — please do take notes and keep track especially of OLDER mentions of working on this problem. I know at least one LED company claims to have a recent patent on the idea of a low- or no-blue-light source (the US patent office is pathetic, about as good as the Australian patent office that, some years back, gave a patent on the wheel — and the way to challenge that kind of thing is to show “prior art” existed as public knowledge that makes a patent invalid.
http://store.yujiintl.com/collections/high-cri-led-lights/products/vtc-series-a75-bulb-10w
For a 10W bulb, is the 440lm output a bit low(ish) or does it really take that much power from output to get spectrum right?
Not sure about household bulbs, but for a flashlight, 44lm/W is not so bad if it is 90+ CRI. My most efficient cool white low CRI flashlight runs at betwern 90 and 100 lm/W. A stock sk68 clone is under 40 lm/W.
I have to wonder how difficult it would be to do something similar to what they are doing with the led filament bulbs that have popped up recently https://www.youtube.com/watch?v=H_XiunR-cAQ
ahh, ok thanks!
Excellent spectrum!
It's for VTC 5730 led's or for lamp ? What spectrometer you used ?
Anyone use Yuji BC Series High CRI MCPCB LED 24V Modules ?
Evgeniy, you asked where that spectrum comes from.
Go back up the thread to where I posted that spectrum, originally (not the copy you reposted)
Click on the one I posted, and it will show you the page where the image comes from.
It’s their spectrum from their web page, I did not create it.
(when you post an image link using the little “sunset” icon above the text entry box, it lets you first post the link to the image, and then optionally post the link to the source page, that ’s what I did there)
(I do sometimes post spectra I captured using this: https://publiclab.org/wiki/spectral-workbench
Thanks. (Image removed from Yuji site, 404, but found by web.archive.org.)
you use Yuji led modules ?
Odd, I got to that page earlier this morning.
Nope, curious about them but not up for ordering stuff I don’t know much about.
If they had something like the Luxeon PC Rebel Amber with a bit of phosphor added to improve color rendering, that would be interesting.
But “no blue_ is what I’m mostly looking for that’s hard to find.
