What does ‘Color Temperature’ mean?
'Color temperature' is a way to describing the color warmth/coolness of light. You may have seen this when buying light bulbs for your house, it is shown as a number 3600K or 5500K, etc.
The higher the number the 'cooler' or bluer the light becomes, while lower numbers mean the light is more orange.
This can be important if you are doing photography/video as the color temperature will affect the colors in your photographs/video. In this case, ideally, you should try to use a neutral color, as close to 5500K as possible.