New 3535 Hex die LED from Nichia 309/319A

[clemence]

880 lumens with 2.8 amps… not impressed.

So am I
Unless there’s CRI 9080 involved

[clemence]

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

[Texas_Ace]

@clemence

@Texas_Ace

I would love any of the multi die LED’s in a 3V format, that truly would become the standard LED going forward IF it had a thermal pad so we could use a DTP star.

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

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.

[clemence]

[djozz]

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?

[fritz15]

@viperbart

@clemence

@Texas_Ace

I would love any of the multi die LED’s in a 3V format, that truly would become the standard LED going forward IF it had a thermal pad so we could use a DTP star.

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

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

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

[chouster]

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

[emarkd]

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

[clemence]

@djozz

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?

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.

[clemence]

@emarkd

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

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

[emarkd]

@clemence

@emarkd

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

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

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

Thanks for taking the time to test them for us.

[clemence]

[emarkd]

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

[clemence]

The secondaries used in above tests for those curious

[Texas_Ace]

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

[Mitko]

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

[clemence]

@Mitko

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

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

[Mitko]

Thanks alot, if the electrical /mech dedome fail pls try chemical

Its crusial for my needs

I will buy a dozen of those on their RTM anyway yet its a good thing to know what should we expect

[clemence]

@Mitko

Thanks alot, if the electrical /mech dedome fail pls try chemical

Its crusial for my needs

I will buy a dozen of those on their RTM anyway yet its a good thing to know what should we expect

It’s not as easy as XPG. The lens is not easily knocked off without some damage to the phosphor under my heat gun. So much different from the XPG with it’s auto dedome feature even on high temp setting hotplate.
Is slicing considered to be a dedoming? I prefer slicing though….from reliability POV

[Mitko]

Thanks for your efforts m8, i will get 10+ pcs from those 6500k anyway but i was wondering will those be dedome freindly

We definately need some “better XPG” :sunglasses: options, especialy after the XPG nerf