Lighting colour temperature visualiser.

Warmer CCTs are usually reviewed for hospitality, receptions, lounges and softer commercial interiors. Compare them with hotel and hospitality lighting where atmosphere matters.

4000K is a common starting point for offices, education and general commercial interiors. Use it with office lighting and UGR19 office lighting when desk work and glare are important.

Cooler appearances can suit some technical, inspection or industrial areas, but they can feel stark in everyday interiors. Compare with warehouse and industrial lighting before specifying them broadly.

Colour appearance affects how people perceive brightness, alertness and comfort. For workplaces, review CCT alongside dimming, daylight and controls rather than treating the Kelvin value alone as human-centric lighting.

The same CCT can feel different once dimmed or controlled by scenes. Compare the result with lighting controls, especially for hospitality, meeting rooms and multi-use spaces.

Use the image as a discussion aid, then compare commercial downlights, linear lighting, LED panel lighting and track spotlights.