Lithonia Lighting Contractor Select FMLWL 4-Foot LED Non-Dimming 120V 4000K Wraparound Light Fixture

The measurement of the color of the light output, measured in Kelvins. The warmer the light, the lower the color temperature. The cooler or "whiter" the light, the higher the color temperature. Residential lighting typically uses a warmer color temperature between 2700-3000K. Higher temperatures are typically used in commercial applications, but it is a personal preference.