Ultimate LED Bulbs - Ultra High CRI - The Honorable Quest

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Joshk
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Dalamar wrote:
…god I hate cli.

Me too. It’s 2020 for God sake. We are supposed to be on to brain-computer interfaces now.
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Joshk wrote:
Dalamar wrote:
…god I hate cli.

Me too. It’s 2020 for God sake. We are supposed to be on to brain-computer interfaces now.

CLI interfaces won’t die any time soon.
They require learning which is a big drawback. But they are simple to implement, simple to automate and once learned can be quite ergonomic.
I use Unix shell a lot – and I’m much more productive because of that.
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One more bulb for the spreadsheet:
Bedtime Bulb review

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Joshk
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maukka wrote:
Remez LED bulb with SunLike LED’s tested

I was pretty excited to click. Then I saw only the 5700k was reviewed. Any plans for reviewing the 3000k?

SunLike
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Joshk wrote:
maukka wrote:
Remez LED bulb with SunLike LED’s tested

I was pretty excited to click. Then I saw only the 5700k was reviewed. Any plans for reviewing the 3000k?


Yes, I sent e14 3000k too

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https://t.me/sunlikenews

maukka
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I’ll test the 3000K E14, but first I need to get an E27-E14 adapter for my sphere.

maukka
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Here’s the CRI data for the Remez SunLike E14 3000K.

hank
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Quote:
UV and IR for plants

Say what?

You want red and blue, not UV and IR (and not narrow LED spikes but a fairly broad range of each color)

https://duckduckgo.com/?q=photosynthesis+spectrum

https://duckduckgo.com/?q=photosynthesis+spectrum&t=brave&iax=images&ia=...

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hank wrote:
Quote:
UV and IR for plants

Say what?

You want red and blue, not UV and IR (and not narrow LED spikes but a fairly broad range of each color)

https://duckduckgo.com/?q=photosynthesis+spectrum

https://duckduckgo.com/?q=photosynthesis+spectrum&t=brave&iax=images&ia=...

I know this pictures since 2013. I need just real tests, not pictures.
Or you think that manufacturer and his huge buyer are stupid? Do you really think that they did not seen this pictures? Big Smile

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Joshk
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maukka wrote:
Here’s the CRI data for the Remez SunLike E14 3000K.

!https://i.imgur.com/io2aOf8.png!

Looking good. I’ll take a bit of over-saturation. Thumbs Up

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Hello, peoples of the round Earth. StarLike LEDs is near!


p.s. New body of SunLike50D

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Joshk
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My fav is WGS84.

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Joshk wrote:
My fav is WGS84.

I mean flat Earth. Flat Earth can be round, like disc. evidence

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Joshk
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Well flattening it can be useful when you want it to fit a flat screen. Here’s a little code from an old project of mine. Does this make me a flat earther?

function MapLatLonToXY($phi, $lambda, $lambda0)
{
$N; $nu2; $ep2; $t; $t2; $l;
$l3coef; $l4coef; $l5coef; $l6coef; $l7coef; $l8coef;
$tmp;

/* Precalculate ep2 */
$ep2 = (pow($GLOBALS[‘sm_a’], 2.0) – pow($GLOBALS[‘sm_b’], 2.0)) / pow($GLOBALS[‘sm_b’], 2.0);

/* Precalculate nu2 */
$nu2 = $ep2 * pow (cos($phi), 2.0);

/* Precalculate N */ $N = pow($GLOBALS[‘sm_a’], 2.0) / ($GLOBALS[‘sm_b’] * sqrt(1 + $nu2));

/* Precalculate t */
$t = tan($phi);
$t2 = $t * $t;
$tmp = ($t2 * $t2 * $t2) – pow($t, 6.0);

/* Precalculate l */
$l = $lambda – $lambda0;

/* Precalculate coefficients for l**n in the equations below
so a normal human being can read the expressions for easting
and northing
— l**1 and l**2 have coefficients of 1.0 */
$l3coef = 1.0 – $t2 + $nu2;

$l4coef = 5.0 – $t2 + 9 * $nu2 + 4.0 * ($nu2 * $nu2);

$l5coef = 5.0 – 18.0 * $t2 + ($t2 * $t2) + 14.0 * $nu2
- 58.0 * $t2 * $nu2;

$l6coef = 61.0 – 58.0 * $t2 + ($t2 * $t2) + 270.0 * $nu2
- 330.0 * $t2 * $nu2;

$l7coef = 61.0 – 479.0 * $t2 + 179.0 * ($t2 * $t2) – ($t2 * $t2 * $t2);

$l8coef = 1385.0 – 3111.0 * $t2 + 543.0 * ($t2 * $t2) – ($t2 * $t2 * $t2);

/* Calculate easting (x) */
$xy;
$xy0 = $N * cos($phi) * $l
+ ($N / 6.0 * pow (cos ($phi), 3.0) * $l3coef * pow($l, 3.0))
+ ($N / 120.0 * pow (cos ($phi), 5.0) * $l5coef * pow($l, 5.0))
+ ($N / 5040.0 * pow (cos ($phi), 7.0) * $l7coef * pow($l, 7.0));

/* Calculate northing (y) */
$xy1 = ArcLengthOfMeridian($phi)
+ ($t / 2.0 * $N * pow(cos($phi), 2.0) * pow($l, 2.0))
+ ($t / 24.0 * $N * pow(cos($phi), 4.0) * $l4coef * pow($l, 4.0))
+ ($t / 720.0 * $N * pow(cos($phi), 6.0) * $l6coef * pow($l, 6.0))
+ ($t / 40320.0 * $N * pow(cos($phi), 8.0) * $l8coef * pow($l, 8.0));

return $xy;
}

Edit: man the formatting went to heck.

hank
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Quote:
. I need just real tests, not pictures.

Eh? You mean you need evidence to convince you which wavelengths plants use for photosynthesis?

You could do the experiment yourself; it would be a good science fair type project.

Joshk
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hank wrote:
Quote:
UV and IR for plants

Say what?

You want red and blue, not UV and IR (and not narrow LED spikes but a fairly broad range of each color)

It was probably lost in translation, but I assume he meant to say “deep red” and “deep blue”. Not actually UV and IR.

niktak11
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It is time for a BLF Sunlike light bulb

SunLike
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Fneuf, I think it is bingo again!
Indexes:
99
99
99
98

p.s. I did not pay to Maukka! All legal!

9W SOL http://budgetlightforum.com/node/71636
8W smd SAW http://budgetlightforum.com/node/71624

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SunLike wrote:

9W SOL http://budgetlightforum.com/node/71636

!{width:49%}https://i.imgur.com/1Z1M0xC.png!

Wow. I’m not sure if I ever want to see this light in person for fear of nothing else living up to it. That’s an AMAZING ~4000K spectrum. Wow.

Seriously. When are you going to get a contract to mass produce a bulb like these?

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JaredM wrote:
SunLike wrote:

9W SOL http://budgetlightforum.com/node/71636

!{width:49%}https://i.imgur.com/1Z1M0xC.png!

Wow. I’m not sure if I ever want to see this light in person for fear of nothing else living up to it. That’s an AMAZING ~4000K spectrum. Wow.

Seriously. When are you going to get a contract to mass produce a bulb like these?

what?! Shocked

World government will kill me if I will mass produce bulbs like that

Now only like this in my shelter:

BelMORDOR’s Ламповщик|Lampman

https://t.me/sunlikenews

Omega_17
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Wow amazing results!

niktak11
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JaredM wrote:
SunLike wrote:

9W SOL http://budgetlightforum.com/node/71636

!{width:49%}https://i.imgur.com/1Z1M0xC.png!

Wow. I’m not sure if I ever want to see this light in person for fear of nothing else living up to it. That’s an AMAZING ~4000K spectrum. Wow.

Seriously. When are you going to get a contract to mass produce a bulb like these?


Even with a price reduction from economies of scale, I think they’d be a lot more expensive than the average person is willing to spend on a light bulb.
Agro
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I remember SunLike speaking of these bulbs being designed to last a very long time. If my memory serves me well he spoke of 20 years.
Now I’m convinced that I want to have some but expected durability is a big factor in the discussion. If I can expect 5 years, I’d buy a few for fun uses. If I can expect much more I’d buy a larger volume.

Can someone independent who has a good idea of electronics share their thoughts on the topic?

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Agro wrote:
I remember SunLike speaking of these bulbs being designed to last a very long time. If my memory serves me well he spoke of 20 years.
Now I’m convinced that I want to have some but expected durability is a big factor in the discussion. If I can expect 5 years, I’d buy a few for fun uses. If I can expect much more I’d buy a larger volume.

Can someone independent who has a good idea of electronics share their thoughts on the topic?

BelMORDOR’s Ламповщик|Lampman

https://t.me/sunlikenews

niktak11
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If you had to guess, what would be the first thing to die in one of your bulbs? The LED or one of the driver components?

hank
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I have three or four LED 110v household bulbs that have died, clearly a driver component (multiple emitters visible, none damaged)
All of them are glued shut.

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SunLike wrote:

My brother gave me a small hair trimmer whose batteries were dead recently, it was refusing to work with a blinking red light. You could make it work by first plugging it to the power supply, turning it on and then disconnecting the supply's cable, but refused to work by itself on batteries. Its electronics raised the end of life flag, this means even if I had replaced its cells the thing wouldn't have worked.

On the other hand, I have a cheap hair trimmer which I overhauled with li-ion cells years ago, tuning its charging voltage for everlasting life. It also is noticeably more powerful than stock.

 

So, what are we paying for and why are we paying for?

People should completely stop buying carelessly, stopping this insanity.

I prefer to make good stuff. Anything which purposely reduces your vibration or that of what you do, is a disservice. As a consequence of looking at self interest beyond the highest good, it is skewed and leads to crash. Like being on drugs. 

The Light Innocent I am

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Please avoid quoting lenghty posts, namely with nested quotes. Trim the quote down to the essential. Helps with forum neatness and legibility. Thanks.

Localized AliExpress links mess up with the language setting of whoever clicks or taps on them. While this is a fault of the AliExpress system, turning localized links into global links helps and is easy; just change the locale letters in the url for www. Example:

https://es.aliexpress.com/item/bla-bla-bla.html turns into https://www.aliexpress.com/item/bla-bla-bla.html. Thumbs Up

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CRI remarkably decent on these, though price is too high for what they are.

ge refresh e12 led7dcac-cdl9ht2
https://drive.google.com/open?id=1WOVGure_t0dXa2LsvLhjg2oJ-McwevoA

I only like high CRI, I have or have had in order of pref:

Fireflies E07 219B SW45

Fireflies ROT66 219B SW45 D220 (in the mail)

Emisar D4 SST20 4000k frosted lens (the lack of some preset levels kinda makes me want to rate it lower though...)

Jaxman E2L 219c 5700k (indoor use only due to color temp)

Jaxman E2L 219c 4000k

Klarus Mi7

 

Varmint removal (throw):

Convoy M21A C8 ver SST20 4000k (5a)

Convoy S2+ SST20 4000k (3200ma)

Lumintop ODL20C

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Like many of you, searching for a high performing 95+ CRI 95+ R9 LED bulb under $25 US – very difficult, it seems. The performance of even 90 CRI bulbs isn’t good enough for my eyes, colors washed out and ashen – yuck.

  1. Has anyone tested the Philips ExpertColor line? They claim 95 CRI but I don’t see any R9 or Rf performance.
    https://www.lighting.philips.com/main/prof/led-lamps-and-tubes/led-spots...
    https://www.assets.signify.com/is/content/PhilipsLighting/fp929001340904...
  2. How about the Soraa Vivid line? I recently purchased several 2700k and 3000k – very nice R9 performance. Reds really pop but they are terribly expensive at ~$60 US for Par30.
    https://www.soraa.com/assets/specsheets/SS_SP30L_18.5W_VIVID_NA_20Q1.pdf

Cheers from TX

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