What is this emitter???

LED Flashlights – General Info
1

Hi all,

I ordered D4V2 Copper from Hank with Nichia 219C 4000k - he doesn’t list them on the site anymore, but said he still got some so he can do it for me.
Now the light is arrived and the beam tint & colour doesn’t look anything alike 219C 4000k.

To me, the colour & tint look much alike SST-20 5000k I had on my MF01mini - too bad I don’t own it anymore so can’t compare directly but I spent quite some time with it and that cold-ish white with green tint felt intimately familiar. On the other hand, looking at the emitters themselves, they do not really look like sst-20, aren’t they??? (at least judging by the pics of the latter, since, again I don’t own any sst-20 lights anymore).

While I’m sorting this out with Hank directly, I’d like your opinion as well please - what kind of emitters are installed in my new D4v2 Copper?

Here are some pictures: What emitter is in D4v2??? - Album on Imgur
Beamshots are taken with Galaxy S10 camera set to manual: WB 5000k, Iso 400, 1/1500F1.5

Again, looking at Reddit - Dive into anything sort solidifies my theory that I got SST-20 5000k by mistake but then again sst-20 emitters look totally different here: 4.97€ |Luminus SST20 2700K 4000K 5000K 6500K auf 16mm / 20mm DTP kupfer bord|Leuchtperlen| - AliExpress

I’m puzzled.

2

In one of your photos you can clearly see that it’s 219c. On the internet you can find pictures of both emitters - 219c and sst20.
Perhaps he installed the 219c 5000k by mistake that were once available.

3

It looks like 219C in 5000k

You can compare for yourself here: LEDs & Other Stuff - (Reference Guide)

4

Thanks for the input! - that page with LED pics is very good!

Are 219C 5000k known to have greenish tint?

5

My original D4 was purchased with 5000K 219C and they were the only emitter green enough that I could not stand them that I’ve yet owned. I own 5000K LH351D and 4000K Sst20 (both known for green) and nothing is as bad as those 219Cs were.

So what I’m saying is… Yes.

6

Thank you!

7

My D4v2 Nichia 219C (supposedly they are 219C 5000k 83CRI) also has similar "green-ness".

In the following video, the right side is a D4v2 with Nichia 219C 5000k 83CRI (it's on steady brightness level - ie. brightness not changed throughout the entire video).

The left side is an older batch Astrolux S41S with Nichia 219B (not sure what color temperature, but supposedly 5000k) --

I'm cycling the brightness levels on the S41S (quad Nichia 219B) while the right side stays at a constant brightness level.

I think it can be noticed that the right side shows a bit of 'greenish' hue compared to the Nichia 219B on its left..

8

I spy green :slight_smile:

Hank updated that he’s going to send me new unit with the correct colour temp. I’ll keep you posted with new pics once it arrives.
Thanks again for your help!