What happened to 219B?

[Geuzzz]

@Geuzzz

@Bob_McBob

@Geuzzz

You seem to be right. But I know they were often advertised as NVSL219BT-SW45/D220 4500K, 92 CRI.

Don’t know where the 92 cri was coming from then.

That was the R85 version released in 2013, which was CRI 92 typical and available in sw45. Those LEDs were widely used for years, especially since the 2015 “V1” update that added R90/R9050 removed the sw45 option (again, listed as “under development” in the catalogue). 4500K was added back as sw45k in the R9080 release. It’s hard to determine exactly what was available at any specific time because many of the datasheets are gone, and the general LED catalogues weren’t always very accurate.

Mystery solved I am pretty sure that led is used in tk’s L3 L10.

I maybe am confusing the L10 and L11. There might even be 219a in that light.

[Bob_McBob]

@iamlucky13

I was not aware SW45 (non-K) was not actually available in R9080, but I’ll take Bob McBob’s word for it. I guess one or the other of my lights might have actually had R85.

Maukka’s ROT66 measurement technically meets R9080, but is consistent with Bob McBob’s statement about the typical performance of R85 219B’s.

Also, here is the chromaticity diagram showing the range of DUV possible within SW45K that Bob mentioned. It looks like the theoretical range is even bigger than he stated, but from tint measurements I’ve seen shared, the numbers he mentioned seem realistic.

As far as I know, any R85 219B would be the original version, which looks quite a bit different and has a higher Vf.

Edit: I take that back, when djozz was reviewing R85 from Kaidomain in early 2014, they already looked like the current version: testing two of KD's new Nichia 219b leds (4500K'92CRI' and 5500K)

I don’t have any reason to suspect the original ROT66 didn’t use D220 R9080 sw45k as Fireflies claimed. I believe they ordered an entire reel straight from Nichia, and I seem to recall the label being posted somewhere. The limits I gave are calculated from the CIE coordinates in the datasheet and are specifically at the rated current, so in actual use sw45k can be much rosier (D200 often measures –0.0180 at 3A in an SC64c). The “official” spec is 4260K to 4745K at 700mA. All my ROT66s measure reasonably close to known D220 reels I’ve used.

[ToyKeeper]

@Quadrupel

Without spectrometer test it just quess…

Yes, the quality of data is much higher with a spectrometer than it is without. Comparing visually against a few dozen lights with known tint bins is better than nothing, but a spectrometer would be even better.

Fortunately, Bob has a spectrometer and rather a lot of experience with 219B LEDs… so I’m inclined to trust what he says.

[ToyKeeper]

@Geuzzz

@Geuzzz

Mystery solved I am pretty sure that led is used in tk’s L3 L10.

I maybe am confusing the L10 and L11. There might even be 219a in that light.

I have the L3 L10 in both 219A and 219B varieties. The one in the picture is 219B.

[Geuzzz]

@ToyKeeper

@Geuzzz

@Geuzzz

Mystery solved I am pretty sure that led is used in tk’s L3 L10.

I maybe am confusing the L10 and L11. There might even be 219a in that light.

I have the L3 L10 in both 219A and 219B varieties. The one in the picture is 219B.

Thanks for clarifying.

[jon_slider]

@ToyKeeper

.

the 3 left greener ones, are older 219b 9050. could be d240

the more violet one on the right is sw45k 9080 (could be D200 or D220)

——

I have bought sw45 non K 9080 from Andy,
second from left:
.
(sw45 9080 is less pink than sw45k 9080, but more pink than sw45 9050)

Ive also bought sw45k D200 and sw45k D220, they differ in output by 10%, and they vary in how pink the Tint is, as McBob said, generally lower bin, more pink (not always, there can be bin overlaps)

.

the violet portion is what makes the sw45k work so well during the day, without being green at night

[ToyKeeper]

@Bob_McBob

in early 2014, they already looked like the current version:

That looks like a 219A, not 219B.

Here, I’ve got a 219A on the left, and a 219B on the right:

[ArtieT59]

@ToyKeeper

@Quadrupel

Without spectrometer test it just quess…

Yes, the quality of data is much higher with a spectrometer than it is without. Comparing visually against a few dozen lights with known tint bins is better than nothing, but a spectrometer would be even better. Fortunately, Bob has a spectrometer and rather a lot of experience with 219B LEDs… so I’m inclined to trust what he says.

True. A spectrometer is the end all be all, but that does discredit our own eyes. And regarding the idea of "you like what you like", it is obvious if the old is different than the new. It doesnt matter in this situation "by how much exactly" unless that is in fact what the person wants to know. And in fact, that was what TK had originally asked, but not what they or I were referring to in the above comment. We were just simply insinuating COLD LIGHT = BAD LIGHT :))

[jon_slider]

@ArtieT59

We were just simply insinuating COLD LIGHT = BAD LIGHT

the new sw45k has different Tint, but not different Color Temperature

the old sw45 was greener, and had lower Red output (CRI R9), but it was not Warmer

TK’s wall photo shows Tint differences, more than Color temperature differences in those lights…

the differences in R9 wont be apparent in a wall shot. I find palm shots helpful to compare the amount of Red being produced by an LED.

3000k 100 CRI (incandescent):
.

3000k low cri led
.

[Bob_McBob]

@ToyKeeper

That looks like a 219A, not 219B.

You’re right, the “V1” update was before my time in flashlights, and I was always under the impression there was a noticeable physical difference too, but that is definitely a 219A.

[jon_slider]

Tint variations of 219b 4500K 9080 LEDs:

.

although the Nichia sw45 (non K) is greener than the others, it is more pink than this cree:
.

.

[carsknivesbeer]

So is 219b 2700k sw27(k?) available before and are there any measurements of it or is it a new Nichia product?

[Sari33]

@jon_slider

Tint variations of 219b 4500K 9080 LEDs:

.

although the Nichia sw45 (non K) is greener than the others, it is more pink than this cree:
.

.

It’s he D220 from Simon? Doesn’t look deep rosy as others sw45k but hope pinkish it’s visible when shine alone to eyes.
You are official Nichia Ambassador

[Unheard]

Is there any source left for the 5000K 219B? Not sure what flux bin NC uses/used for their TIP CRI 2017, but that is a real nice LED, too.

Good to learn Nichia still produces 219B’s on request.

[jon_slider]

@Sari33

It’s he D220 from Simon? Doesn’t look deep rosy as others sw45k but hope pinkish it’s visible when shine alone to eyes.

my 219b leds are from azhu

atm he has sw45k D200, which are usually more pink than D220…

I see the pink of sw45k during the day (because daylight has higher DUV), but not at night. (because sw45k is cooler and looks bluer than incandescent)

[Sari33]

hope the tint of my D220. 219b can help during the gray winter days for the mood.
Unheard I have one 5K 219b but came with BLF 348.
Despite the cool CCT,the tint it’s cute at day but I didn’t use on night.