Ultimate LED Bulbs - Ultra High CRI - The Honorable Quest

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add 2700k to CCT of Sunlike10X please

also your tabble in .png is 382kb
you can compress it to 295kb by optipng to 295kb
and additional to ~280kb with PNGoutWIN after optipng (it is slow)

ps. it is not manufacturer test, it is independed test by lampters.ru =)

Also my lampman’s assistant have spectrometr UPRtek and he have the same results

Done.

Clever remark, it has been performed by lamptest.ru . But I remembered when I first discover your website (and then contacted you), I tried to found back their tests of your products on their own website and I couldn't find them back there (for instance, you do not seem to appear in their manufacturer list). Do you know why?

I always think of optimising PNG and JPG for the website I'm managing, but I don't have the same reflex when I just share images online. After tests a while back I settled to use "compressor.io" (391>218kb) and "tinypng" (391>213kb), depending from cases. I'll have to give PNGoutWIN/optiPNG duo a try.

because I do not pay to him =)

I deleted .ru from tests, beuse I can not find on his web-site tests of my lamps easy. Some month ago it was on the main page.
there is tests of:

my first sunlike TRI-R bulbs from jan.2018

SOLs - China

really thanks to him for all of this tests, because I still do ot have spectrometr =(

compressor.io when “lossless” just used optipng - it is free (OS) and tiny
but you can use optipng by yourself
also you can compress some better (0-10%) if you will use after optipng pngOUTwin (not free and really slow)

tinypng.com is not lossless!
and I additional compressed it by pngOUTwin =)

it convert your png file from 24-bit to 8-bit.
you can do it in the paint.net also (free - OS)

R5 line and spectrum also… so much artefacts in 8-bit

Which of the two do you recommend?

Once i ordered a bulb from https://well-lit.co.uk

The reds seem a bit over saturated and it’s a bit too yellow for me. Still way better that any lower cri bulb. It’s quite heavy and is still working fine after four years. I’ve had other cheap bulbs £4-£6 fail in 1-2 years. I think this is the same bulb:

Very roughly:

  • SAW is a bit more energy efficient, giving some more lumens
  • SOL is the best of the two for color rendition.

Some news around the Ultra High CRI table :

  • As proposed in one of my previous post, I've committed the tweak on the "BLF Bulb Quality factor" formula
  • Following Barkuti's proposal, I've isolated the bulbs with some missing data in a separated zone
  • I'm working on integrated Joshk's results
  • I added the latest review of Maukka. Those new bulbs, coming from "Ligthning Arena" ranked #3 (A- grade) and #11 (B grade). Many thanks to Maukka for his task!

any!

Guys, once those tryout bulbs will be received, could you give us an update here and tell us if there are any manufacturer / brand name associated to those ones? Also if you know someone with a spectrometer on hand, you know what to do...

I’ll post a test on the 4000K and 5000K versions as I also ordered them.

Great! Looking forward to it. :+1:

just a bit of creative advertising

Wellp, it's certainly creative but somewhat lacks appropriateness. Even if funny looking being judgemental may not feel right to some. Something tells me you wouldn't use such advertising, or would you? Just that.

By the way, how about upgrading Miss Shite's emitters to SAW/SOL? :-D

It should say “Do you want to protect your eyes” or maybe just “protect your eyes”
Really I do’t know if the violent wavelengths does other kinds of harm since shorter wavelengths are more energetic.

I asked my daughter’s optometrist if my high power LED flashlights were at risk of causing eye damage to her if she played with them. He said no, they don’t emit UV or IR, so no worries. And from what I saw with my spectrometer, the output was nothing at the edges of vision. So basically, your reflexes will detect and prevent any damage.

No, not violet (~380 to ~450 nm wavelength light). It’s more purple or pink, created by combining red and blue. Purple doesn’t have a wavelength; it only exists as a sum of two other colors.

Duv is the overall tint in relation to the blackbody line. In a white spectrum, pure white is shown by the dotted line here. On one side of the line is green, and on the other side is pink:

Most people prefer slightly pink lights, so it is desirable to produce a tint with a negative duv value.

One of the easiest ways to make a pink tint is to combine LEDs which are far apart in color temperature. When blended, the mixture falls below the pure white line. For example, this shows the colors which can be created by mixing pure white 5000K and 2700K:

It works because the color space is curved, but the mixed tint line is straight. But to work well, the two tints should be far apart. Mixing 4000K and 4500K would not accomplish much, but mixing 3000K and 5500K should look very nice.

One of the reason why I will use 3030 sunlike leds (finally) in 8w cheap model was color mixing (another was price and much more power than their old 3030)

I use 4000k, it is better for me than 5000k, but! but 4300-4200 will more better than 4000k. So, now I can mix any colors.

For example 3:1, 2:1, 1:1


For example, 5600-5700 is not white, it is with blue tint (that is I feeling)
Most white for my eyes was when I mixed 5600 and 4000 (SOL) to 5200-5300k. It was most white color what I saw without blue tint (color shade)
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And of course, you can mix any colors for duv what you want =)
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upd

Hello, peoples of the flat Earth!
Well done! about 6 hours (for this board)
120-240-360-480mA or etc with NSI constant Current Regulators (yes, it is not cheap)
from 18v to 25v
also you can give 12v if instead of 1 LED, you will set a jumper (wire)
also you can use led driver if you will set a jumper (wire) except CCR
12×99×1.6mm m3 holes
also you can cut up to 1.5+mm from the both sides
50%G (Grower)
G≈$

This bulb is now reviewed here:

Added to the table!

I took its best result (so 2700K): currently ranked #21 with a BLF Qfactor of 78 and a C- grade. Its clearly better than the previous Trådfri you reviewed earlier, but it is let down by its R9.