Nichia 219C, testing a 5000K 83CRI emitter, comparing with a XP-G2 S4 2B and other leds

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vresto
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uff..too bad my english.i ask-will be a big difference i output between xpl triple hi and this?:
http://www.kaidomain.com/product/details.S022932

EDC- Jetbeam E40R

Headlamp-Thrunite th30

djozz
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vresto wrote:
uff..too bad my english.i ask-will be a big difference i output between xpl triple hi and this?: http://www.kaidomain.com/product/details.S022932

your link goes to a Nichia 219A triple, this comes nowhere near the output of the Nichia 219C . But the XP-L Hi will still have a higher output as a Nichia 219C, but the triple beam will be a little less nice.

Cousin Elmer
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vresto wrote:
uff..too bad my english.i ask-will be a big difference i output between xpl triple hi and this?: http://www.kaidomain.com/product/details.S022932

Kaidomain offers that triple in two configurations. One wires the emitters in “series” and the other in “parallel”.

Your link points to the “series” configuration. It is highly likely that you would want/need the parallel configuration at the following link.

http://www.kaidomain.com/product/Details.S022933

But don’t take my word for it. Just be sure you get the configuration that is appropriate for your intended driver.

vresto
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i knw,there is a paralell..i want to know,if there is a big difference between tripple old nichia and triple xlp hi:)

EDC- Jetbeam E40R

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djozz
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The Nichia site used to mark all 90CRI 219C’s ‘under developement’.

I already heard rumours (from clemence), but now also on the website for the 3500/4000K version that marking has gone, so I guess they officially started producing them.

chouster
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here’s the 219D

djozz
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chouster wrote:
here’s the 219D

Wow, good find, can’t even get there via the home page! No time to look into it now, excited to see what’s new about it Smile
ToyKeeper
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I don’t even have a high-CRI 219c yet, and the 219d is out already?

Regardless, looking forward to more details.

ggf31416
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So,according to specs the 70 cri version is about 5% brighter than the equivalent 219C and almost the same as a XP-G2 S4, 336lm @ 700mA

clemence
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chouster wrote:
here’s the 219D

Currently published data limited to R7000. Actual product are available up to R8000. Will take months or years until the R9050/80 launched.

Also, theres 7070 package ready to launch with weird but practical footprint: 149AM (9V)
Available up to R9050. Designed for stadium lighting.

And 8080 package too

And there’s rumour that 149AM R9080 is already there made exclusively for Panasonic
Football is very popular in Japan…..And I guess that’s why there’s a special request for it.
https://prtimes.jp/main/html/rd/p/000002930.000003442.html
http://www2.panasonic.biz/es/lighting/outdoor/floodlight/stadium_beam_4k...

- Clemence

1C3
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I overlayed some graphs from the nichia website, red is 219c 70cri 5000k and blue is 219d 70cri 5000k


It seems that spectrum is slightly different and forward voltage is lower

1C3
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What might be very interesting is the fact that it seems to be throwier too

Manual Man
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Here is my quick analysis of the 219D based on the info on the website and your graphs 1C3 compared against 219B and 219C datasheet values for R70 LEDs:

Lumen output (700mA):
219D: 336
219C: 322
219B: 302
~4% efficiency increase (vs 6% increase going from 219B to 219C)

A quick calculation using a ruler against your graphs 1C3 I get the follow voltage values @ 2.4A:
219D: 3.35V
219C: 3.45V
219B: 3.4V?
~3% efficiency increase

~7% total efficiency increase

Luminous Intensity:
219D: 115
219C: 92
219B: 76
25% increase (vs 21% from B to C)

This isn’t as large a change as we saw going from the 219B to the 219C but given the compounding effects of better efficiency / less heat being created as efficiency inches closer to 100% and a narrower beam this looks like it could be a nice upgrade to the 219C, especially in lights where more range is needed.

djozz
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Thanks for the comparison, Manual Man. So there are some improvements to be expected from the 219D, that is really nice. When they become available things that the datasheet does not tell can be measured: how does it behave at high currents, how does it behave in the different optics, what do the tints look like.

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