Ultimate LED Bulbs - Ultra High CRI - The Honorable Quest

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xevious
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Does anyone here know of a viable, affordable, dimmable LED fixture for a torchiere style lamp?

Jerommel
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So here are some fairly crappy, hand held phone pictures of my 1.5 Watt 2000K 95CRI E27 bulbs with Nichia E21 inside:


1st and 2nd version


Some parts.
Drivers are 50 cents, bulbs are 50 cents, heat sinks are 50 cents. Blushing

maukka
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So cute! Smile

Jerommel
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It could go up to 2 Watts in that set up and stay cool enough with that heat sink, but the drivers turned out to provide only 450 mA in stead of the promised 600 mA.
But it’s the right amount of light for a bed side light.
I estimate it reaches around 45°C under room temperature conditions.
The little sphere lights up nice and evenly, despite the LED sitting at the bottom.
Light loss due to the white plastic of the spheres is much less than i expected.

SunLike
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Jerommel
I think you will like this types of bodies

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BlueSwordM
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What the actual crap…

If there were any heatpipes in the design, I would mistake this for a CPU cooler lol.

Anyway, is your desk this cluttered, is it just my impression?

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

niktak11
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BlueSwordM wrote:
What the actual crap…

If there were any heatpipes in the design, I would mistake this for a CPU cooler lol.

Anyway, is your desk this cluttered, is it just my impression?


Now I want a bulb with a noctua nh-d15
SunLike
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niktak11 wrote:
BlueSwordM wrote:
What the actual crap…

If there were any heatpipes in the design, I would mistake this for a CPU cooler lol.

Anyway, is your desk this cluttered, is it just my impression?


Now I want a bulb with a noctua nh-d15

as you wish

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bobflux
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Jerommel, I need diffuser spheres like the ones you used, where did you get them?

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bobflux wrote:
Jerommel, I need diffuser spheres like the ones you used, where did you get them?

https://www.aliexpress.com/item/32917198113.html
bobflux
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Thanks. Seems like a waste to throw away the rest of the bulb… I think I will raid the nearest bulb recycling bin.

Are you interested in a teardown of OSRAM GU10 CRI90 and CRI97 bulbs?

Jerommel
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bobflux wrote:
Thanks. Seems like a waste to throw away the rest of the bulb… I think I will raid the nearest bulb recycling bin.

Are you interested in a teardown of OSRAM GU10 CRI90 and CRI97 bulbs?


Not really a waste when you see what’s inside. Big Smile
But i bought them to use the E27 base and the plastic bulb, so..
Agro
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SunLike wrote:


some photos of my crazy projects you can find here

Nice. Smile
I wouldn’t expect a light bulb maker to modify so many components…
xevious
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Agro wrote:
SunLike wrote:


some photos of my crazy projects you can find here

Nice. Smile
I wouldn’t expect a light bulb maker to modify so many components…
I expect that this is just prototyping.
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To anyone recycling the driver of dimmable E27 LED bulbs BTW:

Just replace the capacitors with higher quality and better rated ones and put a thermal pad on where it can touch the enclosure.

I recently got a few dead bulbs, and got around to removing them, and man, some of those bulbs either use solid aluminium heatsinks with no fins(so much mass though), or pure thermal ceramic for heat transfer.

Only problem? Their caps died.

Other than that, cheap low CRI dead E26/E27 bulbs are good candidates for modding as long as you replace the LEDs and capacitor.

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

SunLike
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xevious wrote:
Agro wrote:
SunLike wrote:
some photos of my crazy projects you can find here
Nice. Smile I wouldn’t expect a light bulb maker to modify so many components…
I expect that this is just prototyping.

NO!

Every of my lamps!

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Jerommel
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Yeah, cheap Chinese electrolytic capacitors generally suck…

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Jerommel wrote:
Yeah, cheap Chinese electrolytic capacitors generally suck…

CBB capacitors is cheap too. But it will works years and years

BelMORDOR’s Ламповщик|Lampman

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Agro
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SunLike, there’s one thing you could improve about your store. Provide efficacy numbers.

F.e. with 50W bulb I can choose to have 1 or 2 COBs and you say that the latter is 15% more efficient but costs 32% more. Higher efficiency sounds good but being able to quantify the improvement would be a major factor in making the decision.

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bobflux wrote:
Hello everyone! I've found several new interesting bulbs from Osram. Also they have added a "Search by CRI" feature on their website which can be accessed by clicking on "Show all filters" in the "search form":https://www.ledvance.com/professional/products/lamps/led-lamps/index.jsp "Osram 4058075134485 - 8W 2700K 95CRI E27 Filament bulb":https://www.ledvance.com/professional/products/lamps/led-lamps/professio... -- about "6€":https://www.lampesdirect.fr/osram-parathom-retrofit-classic-e27-a-8w-927... -- 806lm I've tried it. Nice thing with filament bulbs is they emit light pretty much in every direction. This one is still a bit directional, in the opposite fashion to a usual LED bulb with diffuser which emits more towards the front. This bulb emits more light towards the sides. Much better for a fixture like "this one":https://www.leroymerlin.fr/v3/p/produits/applique-verre-blanc-hanko-1-lu... where the bulb is viewed from the sides, but pretty bad for a suspension. It is dimmable and doesn't flicker. As far as color rendering goes, it proudly displays "CRI95" on the box... But it's 2700K and I find that much too yellow. I prefer 3000K. "Osram 4058075095366 - 5.9W 3000K 90CRI GU10 36° Spot":https://www.ledvance.com/professional/products/lamps/led-lamps/professio... -- "2.81€":https://www.lampesdirect.fr/osram-parathom-pro-gu10-par16-5-9w-930-36d-b... -- 350lm I tried this one. It looks pretty good. Nice 3000K light with no tint at all, looks even a bit better than the Philips 90CRI "LEDspot MV Value GU10 4.9W 930 36D" (this is not the ExpertColor). I don't know if they will last but I'm recommending it if you want really decent looking GU10 spots at a low price. There are 230lm and 575lm versions and another 5.5W 350lm version which I didn't try. "Osram 4058075095403 - 6.5W 3000K 97CRI GU10 36° Spot":https://www.ledvance.com/professional/products/lamps/led-lamps/professio... -- "3.41€":https://www.lampesdirect.fr/osram-parathom-pro-gu10-par16-6-5w-930-36d-b... -- 350lm This seems to be Osram's answer to Philips Expertcolor GU10 spot... but look at the price! I'm going to order some to try them out. There are also "other models at 230lm and 575lm":https://www.ledvance.com/professional/search/product_search.jsp?language.... Osram website does show the spectrum and even the type of LEDs used in the two spots... you have to click on "graphics and application images". Spectrum looks extremely close to ExpertColor. In the 90CRI Osram spot, the lens at the front is held by three tiny plastic legs which can easily be popped off, exposing the LEDs... it is a bit flimsy and totally not waterproof, but this could actually be useful, as it means the spot can be modded., maybe with another lens for example. I've tried replacing the lens with a round diffuser (ie, a frosted plastic christmas decoration) and it makes a neat 3000K GU10 bulb. Output is a bit low at 350lm though.

Thanks for your submissions, I added those bulbs in the table.

Rise and Shine my precious...

Jerommel
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SunLike wrote:
Jerommel wrote:
Yeah, cheap Chinese electrolytic capacitors generally suck…

CBB capacitors is cheap too. But it will works years and years

They’re a lot bigger for the same capacity though, which can be a problem.
But you can buy Japanese brand elcaps, they will last long too.
SKV89
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Prometheus Lights will be selling a high CRI bulb.

The 2700K version has a DUV = -.0.0006 which is not negative enough for my personal preference but I think many will like it.

SunLike
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Jerommel wrote:
SunLike wrote:
Jerommel wrote:
Yeah, cheap Chinese electrolytic capacitors generally suck…

CBB capacitors is cheap too. But it will works years and years

They’re a lot bigger for the same capacity though, which can be a problem.
But you can buy Japanese brand elcaps, they will last long too.

400-450v CBB is not so big, but 100v (there is no big capacity with 63v and 63v it is minimum voltage) really much bigger than electrolytic capacitors

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elwood
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Just purchased some Feit LED’s from Costco for $12.99 for a 6pk. 91 CRI, 90 R9. Can’t find them on Costco’s site or Feit’s. I can tell a significant difference in the color of my walls in comparison to my 80 CRI recessed lights (need to find replacements for these next).

EnergyStar specs

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elwood wrote:
Just purchased some Feit LED’s from Costco for $12.99 for a 6pk. 91 CRI, 90 R9. Can’t find them on Costco’s site or Feit’s. I can tell a significant difference in the color of my walls in comparison to my 80 CRI recessed lights (need to find replacements for these next).

EnergyStar specs

What state are you from elwood? Do you have any pictures of the packaging you could post? UPC #?

EDIT:

Are these it? https://www.costco.com/feit-electric-led-60w-replacement-soft-white-fros...

elwood
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I’m in Louisiana. Those don’t have the same specs. Like i said, i couldn’t find these exact ones on Costco or Feit’s website. The model number is CEOM60/27/6(W). Here’s some pics of the exact same ones i purchased.

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elwood wrote:
I’m in Louisiana. Those don’t have the same specs. Like i said, i couldn’t find these exact ones on Costco or Feit’s website. The model number is CEOM60/27/6(W). Here’s some pics of the exact same ones i purchased.

The Feit enhance bulbs on costco’s site all have terrible reviews indicating bad caps and build quality, but as you said the models were different.

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

Fireflies E07 219B SW45

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

elwood
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Dalamar wrote:
The Feit enhance bulbs on costco’s site all have terrible reviews indicating bad caps and build quality, but as you said the models were different.

If I knew what to look for i’d be willing to sacrifice one to see if they’re built any better.
Dalamar
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elwood wrote:
Dalamar wrote:
The Feit enhance bulbs on costco’s site all have terrible reviews indicating bad caps and build quality, but as you said the models were different.

If I knew what to look for i’d be willing to sacrifice one to see if they’re built any better.

Caps that are rated 105C or less, worse if they’re not japanese. Good ones are rated 130, only 6 cents more.. They’re always potted with grey stuff, have fun with that..

Once had some overpriced chinese ones rated 85C (viribright) needless to say they die fast >_<

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

Fireflies E07 219B SW45

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

elwood
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Dalamar wrote:
elwood wrote:
Dalamar wrote:
The Feit enhance bulbs on costco’s site all have terrible reviews indicating bad caps and build quality, but as you said the models were different.

If I knew what to look for i’d be willing to sacrifice one to see if they’re built any better.

Caps that are rated 105C or less, worse if they’re not japanese. Good ones are rated 130, only 6 cents more.. They’re always potted with grey stuff, have fun with that..

Once had some overpriced chinese ones rated 85C (viribright) needless to say they die fast >_<

Ok, i’ll crack one open after work and report my findings.

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