New 3535 Hex die LED from Nichia 309/319A

Flashlight Modding and DIY Parts
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“…Nichia claims its 319A high-power LED is a record breaker by achieving a whopping 164 lm/W at 700 mA (5,000 K). And the 319A is a production device, Nichia say, i.e. not one shining brightly deep down in a liquid nitrogen vessel or in the minds of a few theorists at MIT. Mass production of this super LED is planned for late this month or early January 2017 so with a bit of luck you will be dazzled by your daughter’s new flashlight for Summer Camp.

The size of the 319A is 3.5 x 3.5mm and the device and is foot-print compatible with earlier 3.5-mm LEDs, if not optically. Breakdown is specified at 1,050 mA (~3 W).

A variant with 3000 K color temperature is expected to yield 415 lm with a minimum CRI (color rendering index) of 80. This device won’t give you much deep red though as its R9 CRI specification is zero.

Nichia showcased a number of breakthrough LED technologies at the recent Lux Live show in London’s Excel Centre … what’s in a name….”

Source: https://www.elektormagazine.com/news/efficiency-record-for-production-led

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Luxeon M:
http://www.lumileds.com/products/high-power-leds/luxeon-m

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1130 lumens max with 2.8 amps… <——- corrected. Still not impressed

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So am I
Unless there’s CRI 9080 involved

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The Nichia 144A I got, rated 900 lumen in about the same 8,4 watt power output with CRI 9050
Tested here: https://budgetlightforum.com/t/-/42057
And 1000 lumen in hard to get higher rank

The CRI 70 also outputs ~1300 lumen in that test

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Interstiing, I would how they handle the heat, if they could be cranked up to ~~10-15A like the XHP series then it could be potent, doubt it though.

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Thanks for taking the pictures!

Do I see a slight spiegelei here too?

And the three pictures on the bottom are beams from a reflector or a TIR optic?

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That’s the test current. That highest possible forward current is 4.8 A.

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That’s exactly what Nichia should come up with. And than a flat domed version like the MZ as well.

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So the 319a is green. Like, really green. :confused:

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Very narrow TIR with frosted center aspheric lens, Gaggione LLC49R. Its not spiegelei (well, very subtle) in reality, it’s a very cool looking hex projection.
With normal plain TIR optics, you can see the hex projection.

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What do you expect from Ra7000 6500K? It’s much much better than XPL 6200K CRI70.
:wink:

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Ah, well it didn’t occur to me that those were the really cool ones. Here’s hoping the 5000K neutrals are…more neutral. :slight_smile:

Thanks for taking the time to test them for us.

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Oooh, that 5000K 319a looks much better. I’m anxious to try those myself. Thanks Clemence!

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The secondaries used in above tests for those curious

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I agree, can’t wait for those 5000k 319A to show up.

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clemence

How do they dedome ? If possible ofc, pls try that if not when you have the time, its the thing that interests many of us most :slight_smile:

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Later tonight :slight_smile:
I haven’t dedoming for years. The last one was XPG R5 in 2011. Hopefully I still have the skill.