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

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. Iā€™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, Iā€™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 donā€™t like it becauseā€¦.itā€™s exxtremely pink at any current! AFAIK, the Duv should be much lower than any 219B sw45k Iā€™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 wonā€™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: ā€¦.)

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

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

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

Diffused

[Clemence]

Thatā€™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]

Itā€™s a joke. Iā€™m suggesting itā€™s not pink enough and it needs a minus-green filter.

Unlucky you, I donā€™t memorize Lee filter number. I thought you meant to bring it back up closer to BBL

[Clemence]

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

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

IĀ“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?

Dual output driver would be ideal. Simplest setup is to set the LED in 2s(n)p and a potentiometer. Then check whichever LED pairs has the lowest resistance and connect the resistance in series to the string.
Crude but works

[Clemence]

What is lt1?

What is it what?