My partner is driving me up a wall with “No one thinks about kelvins, just buy the 40W!” and I’m over here trying to explain why I’m taking time picking bulbs in a certain Kelvin range and figuring out the needed lumens for a room.
Bonus points for a simple diagram or a true (emphasis on 5) explanation I can link to her.
Cheers!
In: Technology
“Kelvins” refers to the color of light it puts out. Scientists have observed that while hot things glow red, really REALLY hot things glow blue; and so they decided to put this same temperature scale on light bulbs to communicate whether a light is more red/yellow in its color, or blue. You can tell what color a light source is by holding a white piece of paper in its shadow. If you do this outside in the sun, the white paper should appear to have a bluish tint in the shadows.
Blue light tends to keep people awake and more alert, can be more “harsh”, and blends well with natural sunlight. Yellow light tends to be softer, “warmer” and more inviting, and easier on the eyes at night.
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