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rockies
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# Posted: 16 Sep 2019 07:55pm
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I was watching a show called "Cityline" out of Toronto Canada and they talked about LED lighting.
LED is the most energy efficient lighting you can install. Most off grid people choose LED because they want to use the least amount of battery power to light their cabin. However, older makes of LED bulbs gave off a "bluish" type of light, and the lighting industry is finally acknowledging that this light can cause health problems especially concerning sleep patterns.
https://www.health.harvard.edu/staying-healthy/blue-light-has-a-dark-side
Now lighting companies have developed an LED bulb that has a "reddish" hue of light that doesn't negatively affect the body. This was the company they talked about, but there are others.
https://www.ovidlighting.com/
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toyota_mdt_tech
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# Posted: 16 Sep 2019 09:13pm
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The LED lights I get are the same color as old incandescent bulbs, I hate the blue or bright white. I like the warm feeling the amber ones give off even if its little warmth.
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sparky30_06
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# Posted: 17 Sep 2019 07:10am
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Lights are rated in degrees of Kelvin 3000K is more yellow while 6000K is whiter. This report contains no information stating what color spectrum they are referring too.
http://www.westinghouselighting.com/color-temperature.aspx#targetText=It%20is%20measu red%20in%20degrees,scale%20from%202000K%20to%206500K.
Bluish color light is actually easier on your eyes when reading cause it's closer to natural sunlight. The issue comes with our minds and it thinks it's daytime. No different that living far far north where it stays light almost all day long or dark almost all day long, it can mess with your head.
When i was doing electrical design I would recommend higher K bulbs for task areas, kitchen, laundry room, bathroom, garage, shop, and then a lower K for bedrooms for bed rooms & sitting areas. I would also recommend higher K bulbs for reading lamps.
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ICC
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# Posted: 17 Sep 2019 10:27am
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Not only the color temperature is important, but so is the CRI, the color rendition index. The CRI is why I dislike warm color lighting. The old incandescent lamps were terrible for CRI. But a lot of folks like the yellow cast. Not me
Display screens can now be switched to warmer colors to help eliminate the blue light issues. Mine switch in the evening. Plus running a screen in "dark mode" is beneficial.
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snobdds
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# Posted: 17 Sep 2019 10:42am
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Our company spent almost 400K changing all the ballasts and lights out to a more bright white LED light in each floor and receptacle. It made people have headaches and vertigo to the point it was costing the company money in sick time.
Well we're back to a more softer LED light that is not white.
I prefer white light for working areas and amber for non working areas...
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