@Tungsten_smooth yes, in a directional light, lumens=lux at 1 meter. In a hue bulb (600lm) it's radiating in all directions so it is somewhat less. If you want 10,000 lux you would have to be very close or have a dozen or more bulbs at arm's length. Not easy to do with this form factor.

Hue v1 maxes out its melanopic content in the mid-4000K range because it employs the most "chips" and the illuminance is somewhat higher as a result.

The tubes are likely more directional and would probably be better. Many ad-hoc lightboxes were built like this. But also there are reasonable light therapy panels online for $50 that will make this amount of light to, though some of them have to be used very close to the eye as well.

Don't forget to diffuse the light - staring at any of these lights directly for 30m can be quite painful.

I would also like to purchase from Amazon

@vanmaricor Not f.lux related--have you looked into hemp (minimal-buzz cannabis)? Seems to work wonders for many with seizures.

@dp100 Hey, been some years since I've visited this forum.

Find the physical brightness setting on your monitor a d drop it to 0%.

Next and I'm not joking: wave your hand in front of the screen on a blank white background. If you see strobing or flickering, (I know quite a bit about backlight technology) set it back all the way to 100 or perhaps 94 would be enough to reasonably eliminate P.W.M. backlight strobing.

If you have flickering / strobing, either sit further away from the screen to reduce light exposure, or push it farther away. There are countless, O.K. at least four, differet tools to magnify or enlarge yhe screen so that you do not need to lean closer into the monitor for comdortable reading.

I presume 99.99999999999999999999% of web users are aware of holding yhe ctrl key and scrolling up / down or +/- key.

Windows magnifier is exceptionally wonderful.

Consider reducing monitor resolution to 1280x720

Windows 7+ DPI settings. 150% is 720p size scaling for a 1080p monitor resolution.

Change the monitor contrast setting and increase it on the 2300 / 1900K settings as it's letting through much less green and blue light. You can increase the contrast just slightly without overexposing any colors.

Hi @maxime - no we do not agree it is wrong. It's there for a reason, which is that your body is made up of clocks that entrain to light. That's all it says and it's true.

It would be wrong to say it's a psychological trick or a thing that only involves sleep or a little suggestion, it's actually pretty fundamental to our biology and we want more people to know about it.

Here is a paper that explains how half the proteins in the body are rhythmic based on when your eyes see light - the truth is that your body has billions of clocks, and they're everywher. In some ways, you can choose to have them work well or not, by giving them a strong day-night signal. This is the way immunity, digestion, repair are regulated by the body, and why timing of light is so important.

https://www.pnas.org/doi/10.1073/pnas.1408886111

@StevenBrown said in So are yellow glasses completely useless?:

KLIM Optics Blue Light gaming glasses

Thank you for the information. I've been working a lot on the computer lately and my eyes are getting tired, I wanted to try protection glasses. I will try this option.

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@Barrydunn f.lux is still better than Night Light, but hey, you gotta do what you like the most right? That's what I'd do, so that's all I can recommend. F.lux or Night Light, whichever you like the most.

The current warms the filament while also producing light. A typical dimmer reduces the current, which generates a little less light, but does not stop the incandescent from working. The LED bulbs are working differently, they don't produce heat while consuming energy, only light. I am using only leds in my house, because they are much safer in my opinion, plus they consume less energy. With this smart bulb which I got from amazon, https://www.amazon.com/smart-light-bulb-bulbs-color/dp/B0922Q43LY/I can change the color however I want, and not worry about the light's warmth.

I also prefer night driving get-vidmateapp.com
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@herf said in Would it be possible to add a colder temperature during the day? slope game:

Hi - from a color perspective, on our PC build at least - you can do "use wider slider ranges" and get more "blue" than normal during the day.

I should mention that the way we do this is by removing green and red, and so while there is more blue in a relative sense, it is hard to increase it overall. So this might not work as well as seeing more actual blue skies. But you are welcome to try.

I'll be following !

This study is widely discredited - here is one followup so you can see the difference between ocular (eye) exposure and extraocular (behind the knee):

https://academic.oup.com/jcem/article-pdf/83/9/3369/9231826/jcem3369.pdf

There are indeed visual opsins in the skin, but many of them do not have access to a chromophore, so they don't activate to a neural pathway like those in the eye. There are some potential links with subcutaneous fat in recent experiments, but only in albino mice, and there is no consensus on it yet.

Thanks, herf,

Your reply somewhat supports what I was suspecting -- that what I actually need might be more like the 'Inverse' of the Ease of Use and Accessibility filters.

I will go and look at the resources that you've pointed to.

Thanks,

Using 500 Watt halogen, these bulbs can provide up to 9,500 Lumens. 5000lm / (140lm/W) = 36W or 10000 /140 = 70W LED lights. Hence, 36W to 70W LED lights is equivalent to 500W halogen bulbs..

https://www.mysainsburys.me/

We have had this in the past, but we have turned it off in recent versions. Curious what you would like to see here?

Our reasoning is that people tend to experience a circadian delay from weekend sleep (likely from sleeping in and not seeing light in the morning), but we didn't necessarily want to make Mondays even worse by pushing them later using a screen. So we have tried to keep things on a more consistent schedule.

We also have a custom version (not public) that has 7 day of week scheduling and things like this but it's more for people who do rotating shift work, not people who want to wake up at the same time on Friday and Monday.