Nichia 519A

[DarkShot]

Looking forward to those 2700k jobbies, dedomed with some domed 5700k 519As will be excellent for a tint ramping lantern I bet

[jon_slider]

@Verodin

Simon just listed them online (2700K a week later): NVSW519AT 519A R9080 2700K 3000K 3500K 4000K 4500K 5000K…

thanks for the link!

Laissez les bons temps rouler!

fwiw I edited out the part after html within your quote:

“?spm=a2g0o.store_pc_groupList.8148356.3.40df4a8eAKP7PR&pdp_npi=2%40dis%21SEK%21SEK%2076.14%21SEK%2076.14%21%21%21%21%21%402100bdde16533798254378831eb3e3%21%21sh”

does not really matter either way, but its cleaner…

[Verodin]

Arg, didn’t notice so much gets added at the end, thanks. In my defence, the insert link popup is really tiny, no overview

[contactcr]

I got a few from Convoy to try. Will come out of retirement to swap some LEDs I suppose.

[djozz]

@Verodin

Simon just listed them online (2700K a week later): NVSW519AT 519A R9080 2700K 3000K 3500K 4000K 4500K 5000K…

I see that my crude manual notes have made it as far as aliexpress (yes, Simon did ask permission to use my pictures, but I did not expect it to be my notes :person_facepalming:
)

[Haukkeli]

Heh, I have had similar situations on my career. When I did something fast and dirty compared to usual careful job, then of course that dirty job gets to be the one presented to the public.

[mattlward]

Does the 519a with dome on fit under the standard Carclo optic? They look a little tall, I am thinking of them in an FW3C, but trying to decide 5700k de-domed or 4500k dome on.

[Haukkeli]

@mattlward

Does the 519a with dome on fit under the standard Carclo optic? They look a little tall, I am thinking of them in an FW3C, but trying to decide 5700k de-domed or 4500k dome on.

I have built S2+ triple with Carclo 10507 optics and domes fit nicely underneath. Don’t excpect much throw though.

[mattlward]

@Haukkeli

@mattlward

Does the 519a with dome on fit under the standard Carclo optic? They look a little tall, I am thinking of them in an FW3C, but trying to decide 5700k de-domed or 4500k dome on.

I have built S2+ triple with Carclo 10507 optics and domes fit nicely underneath. Don’t excpect much throw though.

Thanks for the reply. Yeah, would not expect throw at all. However the 5700k de-domed is amazing and I may just go that route.

[contactcr]

Did anyone measure the bins from Convoy store? I ordered some and they arrived but maybe someone can save me the time…lol

[twisted_raven]

Some more tint comparisons featuring a couple 519As.

[contactcr]

non-scientific:

519A from Convoy w/ Carclo frosted TIR

5700K, dome on, 300mA:

5700K, dome on, 1.0A:

[jon_slider]

Im using an Opple, not as accurate as your ColorMunki, but here are my DUV measurements:
3 CCT pairs, domed and dedomed:

the pair on left and right, are 3 step LEDs from azhu, the middle pair is 5 step from Simon

and compared to sw45k D180 w duv –0.0105

I consider the domed 519a as the replacement for any LH351d (same output, almost same hotspot size, less green, and better R9),

dedomed 519a 4500K as a replacement for sw35… (lower duv, 30% more output)

the dedomed 5700K replaces sw40 (more output)
the dedomed 5700K replaces SST-20 4000K (less green)
domed 5700K replaces 219c 5700K (less green, more output)

[contactcr]

thefreeman’s test and my 5700K look pretty comparable. I assume his is from Clemence. I also have 4500K and 3500K from Convoy untested.

[contactcr]

non-scientific:

519A from Convoy w/ Carclo frosted TIR

3500K, dome on, 300mA:

3500K, dome on, 1.0A:

[contactcr]

non-scientific:

519A from Convoy w/ Carclo frosted TIR

4500K, dome on, 300mA:

4500K, dome on, 1.0A:

4500K must be the runt LEDs that don’t bin as 4000K and 5000K I mean who actually wants this CCT in reality?

[jon_slider]

@contactcr

4500K must be the runt LEDs that don’t bin as 4000K and 5000K I mean who actually wants this CCT in reality?

you measured them at less than 4100K… and the duv is slighly negative…

plus you can dedome to get a 20% lower CCT and double the amount of DUV below the BBL

whats not to like? LOL

what CCT and DUV would you like?

[contactcr]

I don’t mean to say it’s not good just an observation that if this is really 4500K then it’s pretty far off in CCT.

2700,3000,4000 all have legacy bulbs to match but 4500K is neither daylight or artificial CCT so it’s probably not used in big numbers

[jon_slider]

> if this is really 4500K then it’s pretty far off in CCT

agree… iirc mine was 4300K, they have been running on the low side…

I could say the 4500K is so popular, and the 4000K is such a dog, that they are trying to unload the 4000K that dont move, by batching them into the 4500K that is in so much demand… lol

speculation runs rampant

[Correllux]

You’ve probably seen a lot more 4500K than you might realize. That’s the upper average of metal halide/HID lighting (when new, anyway). I think typical range is 43-45 but with hours or poor/weathered fixture lenses it looks warmer. For LEDs I’ve hardly seen it, just here and there, but I really like it. There were some auto 194 led bulbs that I found in that temp and wish I’d bought more before they disappeared entirely. To my eye it’s closer to “real” sunlight than the noon/5500K stat that has become the accepted norm (I recall discussion by the pros suggesting that 4800-5000 was more like sunshine, typically).

I consider my Opple more of a toy since it’s just not very accurate or repeatable but it does color temp fairly well. It reads about 400-600 low every time, but repeatability on that one feature is within its spec and is good enough. It’s really best suited for open air room testing for FM and low end lighting designers rather than concentrated beams like flashlights. Fun to play with though, notably how lenses and optics play with color temps.