The names refer to the correlated color temperature (CCT) or appearance of a lightbulb measured in Kelvin (K). Soft white encompasses 2,700K to 3,000K, and warm white sits between 3,000K and 4,000K.

2700K-3000K (Soft White): Soft white delivers a yellowish ... This light is so cool it is likely to have a blue cast to it. A Kelvin rating over 5000 is best suited for industrial spaces and ...