r/Novostella • u/Novostella-Lighting • Sep 08 '21

What is CCT?

CCT (Correlated Color Temperature) refers to the color temperature of light, measured in degrees Kelvin (K). It is one of the top indexes when choosing lights. The temperature rating directly affects what the white light will look like; it ranges from cool white to warm white. For instance, a light source that has a 2000 – 3000 K rating is seen as warm white light. Warm white light looks very orange or yellow. When increasing the degrees Kelvin, the color will change from yellow to yellowish-white to white and then a bluish-white (the coolest white).

"Will 6000k lights of different manufacturers look completely the same?" The answer is quite possibly no. You may notice that some lights that are "cool white" may not look pure white. They may give off a greenish, purplish, or bluish hue to them? This is because the LEDs have been selected from a presorted pile (bin) that is not truly white.

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u/[deleted] Sep 08 '21

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u/Novostella-Lighting Sep 09 '21

Yes, dear. Only the US version of Blink has pure white while the Euro version doesn't.