Why do you buy lights without High-CRI emitters?

The tint can be rosy regardless of high Ra or R9.

Recalling the Prime XHP35. Mine is also extremely rosy - much more so to my eyes than a 219B sw45k.

In your post above you said this

Stay tuned for our next episode, Debunking the Myth that Low CRI NW shows colors as well as High CRI NW…

No ones saying it shows colors just as good as high cri. What everyone’s been saying to them a warmer tint cct whatever you want to call it makes a bigger difference in colors to them compared to adding high cri. And the difference isn’t big enough for them to go strictly to high cri. No ones disagreeing completely that high cri won’t show colors better. Just for the last majority of users. Going from 6500k to 4500-5k makes a more meaningful difference for them. Then going from 70 to 90 cri.

Everyone has their own preference. A few people prefer only high cri that’s fine. Others are happy with low cri 4500k lights.

I’ve been comparing my lights in person 5000k 219c 90 cri to my low cri 5000k lights. Yes stuff looks a little better. The red roofed dog house outside looks better. But to me the difference isn’t drastic enough. To go high cri and nothing else. The light just burns more amps and gets hot faster for less return in output. So yes I’d prefer 4500 5000k and more output for the same or lower Amps. Dropping from 6500 to 4500 is a much more drastic change to my eyes. The high cri just isn’t as important. I just need to light up a big area. Usually set up around 10 lights. Or if I’m at work painting I need more light to see. Just to make sure no runs are forming and can see how much paint is coming out. My overhead lights get covered in overspray and don’t always have time to clean them before the next trailer. It’s one of the same 4 colors. Even being a painter I don’t need the extra cri. One of which is red. As long as I can see how the paint is laying out and the flow that’s all I need I don’t need to see the color of the paint in ultra HD detail. I need more brightness then color detail. When the trailer is done being painted the color is always the same for the customer. Just my uses everyones needs are different.


no shortage of CRI Ra and R9 in his monitor

I started the false rumor that R9 affects rosy tint, but I have learned from maukka that Tint is separate from CRI
here are two lights with neutral tint (I do not mean CCT), both have negative R9 and low CRI Ra
(images clipped from maukka’s post here: Olight H2R review (Headlamp/right angle, 18650, XHP50) )

but their low CRI Ra and R9 make red things look brown

fwiw, I just received my first NW low CRI light. I bought it to learn what people are talking about when they say their NW low CRI led looks like a Nichia.
As expected the tint is piss yellow, I see no resemblance to a Nichia.

I do not share your opinion. Color temperature changes are not the same as CRI changes, to me. A NW Low CRI light does not show colors the way a NW High CRI light does.

Hand Palms, to demontrate the difference in CRI

Both the Worm and the Utorch are NW, look at the coral, which LED makes it most Red?

here is an example of why I do not consider foliage a valid test of CRI


can you see that the Low CRI is very good at enhancing green?
That does not mean that Low CRI, be it NW or not, is good at showing colors.

I can tell by the conviction of your words that you have stones. I’m not sure I need to see them though. :smiley:

Like I said above I can see a difference. With my two high cri lights and in the pictures. I don’t know the effect the camera and monitor play but yes the reds are more vibrant. Even on my red dog house I see it. But in my day to day uses. It just doesn’t matter matter to me as much. It’s not a deal breaker. And when I take my daughters to the park at night. It’s not lit at all basically I make a circle of 8 to 10 lights. High cri isn’t a priority. I need output, and decent run times at a higher output. Your needs are different then mine and others. When I hear the cat fighting with the racoon outside. I don’t think let me grab my high cri light. I just grab a light I know is a few thousand lumens and run it away. I don’t need to see the raccoon in more vibrant color. Just to see it

In these pictures, the low-CRI light also appears to be better at showing red, due to being brighter. That wooden door is much more visible in the second shot… which may serve as an example of why one might prefer lumens over CRI. Brighter tends to look better.

Of course, the visible difference here could also be due to completely unrelated factors like exposure time, ISO speed, or white balance.

…and the difference in the example of the “two neutrals” could still be the (unknown) CCT and/or tint rather than CRI. Just because you say both are “neutral” doesn’t mean they are “the same, other than CRI”.

It seems things are going in circles. Everyone is correct, but talking about different things.

Assuming all other things are equal, higher CRI will generally look better. However, that’s a bit like assuming a spherical cow in a vacuum. It is completely correct within the confines of its hypothetical scenario, but it may gloss over a few factors which are relevant for practical applications.

On a lighter note, here’s a picture of Elon Musk’s cow expressing her discontent with her role as a rocket test payload:

She floated by my space rock around breakfast time this morning, and still had that look on her face. Maybe she’ll be a bit less angry by the time she reaches Mars.

I can see how the Utorch would drive you to post vulgarities, it has a,… distinct output.
Perhaps take the picture again without the plastic lens, you may be surprised at how much the plastic distorts and colors the output. Here are my results.
With lens:

Without:

thanks for reminding me of those photos
the NoLens looks a lot better!
the with Lens looks exactly like my yellow/green donut hole
fortunately I knew what I was getting into beforehand, so not distressed

I bought the Low CRI light intending to have it modded to Nichia anyway
I will add AssPheric lens replacement to the goals list, a diffuser film may be in order…

Please post in the Utorch thread if you find a decent replacement lens. It works well as a mule but the aspheric gives it an interesting character were it not for the crazy color the stock plastic lens adds. (I don’t really KNOW if it’s the plastic that affects it, just thought it was worth mentioning).

Gotta add I’m feeling pretty dull compared to my fellow flashoholics. Besides working on equipment in the daytime and using flashlights to overcome daylight adjusted eyes when peering in ancient machines I mostly use my flashlights for object avoidance at night. I’m an old dad with young kids, old kids, and grandkids so there is always a high probability of stepping on a toy or something that shouldn’t be on the floor.
I could get by with a flashlight that only showed grayscale.

In the past, i bought lights without high Cri because I didn’t know/care about CRI.
Now, i buy lights without high CRI to mod them with my Nichia high CRI :smiley:
Also i buy low CRI because i have enough high CRI in my collection.
I have changed over half of my flashlights’ leds to the 219B sw45 R9080.
For me now, tint is even more important than cri, bad tint is more noticeable

Good point TK…… :+1: … :smiley:
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Cognition Ahead

Blessed be the peace keepers.

Nice…… :beer: . :wink:

,

from Jason Hui over at Prometheus Lights;

” _When you order a MIL/LEO Alpha you can choose your LED, but I still recommend the “Maker’s Choice” MCE 4500K LED. I have two theories on this. First, these are 82 CRI minimum and I believe the enhanced color rendering will allow your brain to recognize features and make decisions more quickly. It’s just a theory, but when life demands split second decision making, I want to reduce the workload on my brain as much as I can.”
_

Interesting spin, which of the following lights reduces the workload, processing time, the most, for you?

I can understand better now, why people say NW low CRI shows colors well, even CW Low CRI shows relative colors. In the next pic I removed the worm from bottom right above, and added a Thorfire TK05 CW XP-G3 Low CRI

Use whatever light you like, choices are good. Our brain is really good at adjusting its white balance and relative color perception, even when a light has Low R9. I would go so far as to say our brain is much more forgiving than the camera, which in itself is quite good at adapting to different relative colors.

thanks to all for sharing your thoughts

From the ridiculous to the sublime

Even with a Green Filter, I can tell the fruit colors apart in real life:

I hear deer dont spook when illuminated with a Green Beam :slight_smile: