Light Bulbs

Ylli

Joined Nov 13, 2015
1,061
Not to confuse you, but if you are concerned about the bulbs ability to show true colors, then check the spec for CRI (color rendering index). Look for a bulb with a CRI of 90 or more.
 

Ya’akov

Joined Jan 27, 2019
6,856
Would an Incandescent Bulb at 2,500 k be more Yellow and Darker to the Eye?
It would be more yellow but how dark it is will depend on its output not color temperature. It will affect colors in such a way as to make fewer distinguishable so that might appear to be a sort of "darker".
 

crutschow

Joined Mar 14, 2008
31,128
Halogen incandescent lights run at a sufficiently high temperature that they give off enough UV light so the fixtures they are in often have a glass plano lens to filter the UV.
 

BobTPH

Joined Jun 5, 2013
6,080
Like Kodachrome, 5000K bulbs “give us the nice bright colors.” Anything containing blues will look far brighter than with a warm light.
 

Bordodynov

Joined May 20, 2015
3,025
An incandescent bulb like the sun gives a uniform spectrum, while LEDs can have a highly irregular spectrum, which distorts the colors. Halogen lamps have an optimal spectrum. They are more efficient than ordinary incandescent bulbs. If you want to preserve your eyesight, do not use LED bulbs.
 

Ian0

Joined Aug 7, 2020
6,713
LED lamps consist of a blue LED and yellow phosphor. More phosphor = less blue, more yellow = lower colour temperature. As the conversion of blue light to yellow light via the phosphor is not perfectly efficient, lower colour temperature = lower efficiency.
Green tends to be missing, unless you get an LED with 90% CRI, which has better phosphor.
LED efficiency falls with increasing temperature, phosphor efficiency increases.
 
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