[GB ended,discussion only] CRI > 80+ NICHIA 2000K-6500K [E21A/219B/219C/319A/144A/757GT-F1(Optisolis)]

I remember the times when I was hunting for the only available “perfect” led- the nichia 083a. Which I had to sell eventually for it was too green, in person.

Now with this broad selection of great leds I one would guess that the perfect one is just a matter of quick choice, right?

Nope, still pros and cons everywhere, and that grail led is again around the corner.

Glad I havent sold my favorite incands :slight_smile:

Four adults with mixed personalities plus one trendy cheerful teenager

[Clemence]

Any chance of sending a 2*3500K (d220) + 2*4500K (d220) = 4000K mix to Maukka? For replcing the green 4000K D240.

Done already, check the picture in above post. Made it especially to your earlier request :wink:

[Clemence]

Is the VR16SP4m (gaps optimized for E17A) board featured as the trendy cheerful teenager ? :partying_face:

No, I only used my first gapless VR16SP4.

[Clemence]

I have seen JetU(solis|E21A) just ran out of stock. When do you plan to restock them?

anyone got any Beamshots of E21A 5k vs E21A 6500k please?.
thanks.

Kit only, no finished mod.

[Clemence]

More reasons I wish I had time for some projects. I’m putting off an order, because I promised myself I would not start any more projects until I finish a couple lingering projects that work is delaying.

But when I do get around to it, now that I know the VR16SP4 is individually addressable, I’m pretty sure I will need one of those in the quad E17A color versions to stick behind a frosted lens in a Convoy.

Unfortunately, the version of the Convoy S2+ that such a colorful emitter board deserves does not actually exist.

Does anyone know of other 4-channel driver options besides the one Mountain sells?

Osram has a desktop program that can take the individual measurements and calculate the resulting mix.

Osram ColorCalculator. Free too

Guys, do you still miss sw45k 219B R9080? I just did a quick test on a mixed 2x 2000K E21A and 2x 6500K E21A quadtrix.
I don’t like it because….it’s exxtremely pink at any current! AFAIK, the Duv should be much lower than any 219B sw45k I’ve ever seen. The combined CCT looks very close to 4700K to my eyes.

This is the fixture I made for Maukka to ease his testing with varying CCTs. Made from scrap aluminum plate and PVC scraps.

Imperfect reflow, not going to fix it. It won’t cause any problem for spectrum testing. Simple reheating will correct the LED position (and all the wires will have to soldered back again :weary: ….)

Never try to sand soft PVC board, unless you want to color it grey.

Relatively tight color mixing 35mm TIR optic. Less than 10°

Approximately a meter from the wall. Each markers are 5cm apart.

Diffused

[Clemence]

That’s quite nice. A bit of Lee 801 over it and it should be about right.

Why Lee? You better use 3000K + 5700K rather than to put output robbing gel.

[Clemence]

It’s a joke. I’m suggesting it’s not pink enough and it needs a minus-green filter.

Unlucky you, I don’t memorize Lee filter number. I thought you meant to bring it back up closer to BBL

[Clemence]

Hey, people call me a heretic ’cause I like the stock 4C in S2+es, and they’re above the BBL. Then again, so’s actual sunlight. Still, I do like rosy, and I loooooove those sw45ks.

anyone have any user shots of E21A 5k 9080 ? thanks.

I´ve done some comparison between some High CRI Lamps

https://www.taschenlampen-forum.de/threads/clemence-aaa-high-cri-geplant.65953/#post-974287

1. Nitecore TIP CRI; (Nichia NVSL219B LED, 3500K This is for sure not 3500K rather 5000K I guess)
2. Wuben E05 Special TLF - Edition (Samsung LH351D LED, 5000K)
3. JetuE21A (Nichia E21A (R9080) D220, 5000K)

Canon Power Shot SX150 IS; Blende 3,4, ISO100;

Hopefully it helps :slight_smile:

Is there any firmware supported CCT changing? Like planed in LT1?