The image above provides a visual guide to understanding color temperature, (measured in Kelvin or K).
Lower color temperatures are more orange, considered “warmer”, and are shown on the left side of the scale, toward 1000K.
Higher color temperatures are more blue in color and shown on the right side of the scale, toward 10000K. These ranges should be avoided, as bluish light can be disruptive to people and animals, especially later in the day.
3500K Interior
5000K Exterior - Switched Electrical/Maintenance Areas ONLY
3000K Exterior - ALL OTHER