Colour correlated temperature, or CCT, is another way to discuss the colour temperature of a picture sconce. CCT indicates the coolness or the warmth of a light as represented in degrees Kelvin. This colour falls on a spectrum rated between 1,000 and 10,000.
Toward the top of the spectrum is where youโll find the coolest, bluest light. Conversely, the bottom of the spectrum houses the warmer light.
The colour temperature of a light certainly has an effect on the appearance of the painting or photography prints. Generally speaking, in order to have the artwork presented in the best possible light, it is recommended that you use modern picture lights somewhere between 2,700 and 3,000k. This will give you a clear look at the artwork without the light being harsh on the eyes.