From years of testing, I can confirm I feel a difference in my sleepiness depending on the ambient lighting. It does not mean CW will for sure block a person from falling asleep. I can fall asleep under the afternoon sun laying on the beach. Sunlight emits more blue light than any CW emitter. When I’m tired, I can fall asleep under any lighting condition.
Yep. It’s one of those “we only use ten percent of our brain” or “pitbulls have locking jaws” sort of thing.
Just look at how many studies said that resveratrol in wine helps heart disease. We know now that it does nothing of the sort. Many studies said that bodybuilding programs of the 90s like Cybergenix were “groundbreaking techniques” with “scientific evidence” and “peer-reviewed studies” behind them. Now, bodybuilders joke about how you should throw those in the trash since they are worthless. It was all marketing.
This blue light cult is just built around selling “blue light blocking” glasses on Amazon. Utterly useless.
I know it sounds egotistical of me and anecdotal as all hell, but I can call stuff like this early. It’s BS, they will find.
There’s a lot of studies (and even, iirc, a few documentaries) about blue light being the primary trigger for melatonin/circadian rhythm stuff. I recommend you do some research yourself, it’s quite useful to know how to use to your advantage. For example, 2700K in the bedroom makes sleeping and/or winding down easy. 5000K in the office makes it easier to be alert and productive at work. Etc.
My wife is nursing currently 
But I just use my LT1. Doesn’t quite get to 1800K though!!
I’m not up to date on Splenda concerns. I’m not even sure if Aspartame causes cancer, but I do know it sucks. I recall reading (but was unable to find a source just now) that it’s responsible for over half of all complaints about food additives in the United States. I know it tends to give me headaches, and Sucralose (Splenda) or Stevia both taste better (subjective) and fail to give me headaches in my beverages.
We’re getting off-topic here, but…
LMGTFY
https://www.google.com/search?q=blue+light+nurses+study
Infant and elderly people are more susceptible to the sleep-disrupting effect of blue light, though older people have natural lenses that get increasingly yellow with age.
One thing I learned long ago is that if someone wants to eat rat-poison as a sweetener, let him. Arguing about it is useless, both sides will trot out “evidence” of one type or another, he won’t stop eating it, and you’ll only get aggravated trying to convince him otherwise.
Bon appetit!!
These NBA are interesting for this specific use.But CRI would be very low.
Where we can get on 3535 - 5050 size?
Rat poison?
What have you been smoking?
Don't tell me you've been smoking colloidal silver again. 
Article that was linked indicates “each participant had an average of 38.4 hours over this period” thus your “Phone hours/ total patients = Average” wouldn’t be the equation that would apply as that would be the average of the observed group, BUT okay lets say it does, the way they presented the information is very deceiving as its the sum total time on the phone during the 30 day observation period of the group not a real average of each participant as indicated.
With this information that would roughly amount to an hour and 20~ minutes daily BUT they also indicated it averaged out to be around 3.7 mins per hour during the day on a say a 16 hour day that would only be 59 minutes on the daily. The average person generally spends more time on a computer for work, watching tv in leisure etc than whats indicated in this article…. One would think the volume of time in front of a monitor or tv is more detrimental than 1~ hour on your phone periodically through out the day…
The Galaxy Note 9,has the same capability as well.
I think that halogen lights emit large quantities of blue light.
Right up into the UV, too.
I still got one of those leak-detecting kits with UV dyes that you can add to oil, coolant, etc. Instead of a UVLED light, there’s a “gun” with 50W halogen bulb behind a silvered-glass filter. Blocks all VIS light and leaves only UV, like a ZWB2 filter.
Of course, I’d use one of my lights vs that beast, but…
this has nothing to do with CRI
you can get red in 660 and 730nm, plus green 520nm and
Amber 595nm all from kaidomain.
and people, please dont reply to the Blue Light Deniers, they are just hijacking the discussion to talk about splenda… dont take the bait.
These 595nm are phosphor converted or native amber emitters as I need?
they look native to me,
you should contact the seller directly with your questions
Do read the nurses study links, that was quite well done research.
OK, cool. Thanks for letting me know.
Hi everyone, thanks for the efforts made thus far to avoid controversies and arguments in this thread. But it does feel like it’s going to start getting ugly. Please try to avoid the more controversial aspects of this topic, and don’t dig in your heels if somebody expresses a different viewpoint. Thanks in advance!
No word from me about the direct correlation of blue light = disease.
Otherwise we shouldn’t even expose or watch sunlight
But I have personal experience that cool/white lights can affect the sleep cycle more. And that it’s important for regenerate organism and endocrine system.
Remember when in my street replaced HPS bulb for white Leds.
Plus the introduction of cool white headlights on cars/bikes in the opposite lane, how much longer it took me to fall sleep than before. Same sensation of ‘’wake up’’ when I watched from afar 5000k Metal Halide instead the almost irrelevant Orange HPS Bulb at similar power.
And not good also watch TV,Phone etc… before sleep,maybe I’m sensitive.
Yes, I too think it’s about artificial light at night and breaking the natural cycle. Pure luck there are wavelengths not influencing release of melatonin.
What I don’t understand: Green is supposed to supress melatonin, right? When we watch yellow light, both red and green receptors are stimulated (else we wouldn’t see yellow), so the effect has nothing to do with receptors, or am I wrong somewhere?