5400 K to 6500 K is called cold white light.

Suitable for activities in which drowsiness is dangerous and in which accuracy and vigilance are very important, such as pressing, turning and such industrial activities.

The range of 4000 K is called natural white light.

Natural light or daylight is suitable for educational, public, hospital and office environments.

2700 to 3000 Kelvin white light is warm.

Warm light suitable for environments that need relaxation and a sense of comfort such as lounges, bedrooms or hotels and resorts