Color temperature refers to the warmth or coolness of light, measured in degrees Kelvin (K). It helps describe how a light source appears to the human eye. Lower values, like 2700K, produce a warm, yellowish light, similar to that of incandescent bulbs, while higher values, such as 6500K, emit a cooler, bluish light, akin to daylight. Understanding color temperature is important in various fields, including photography, interior design, and film production. It influences mood and ambiance, as warmer lights create a cozy atmosphere, while cooler lights can enhance focus and clarity.