Correlated Color Temperature – Chart and Applications | New Note [2024]

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In this note, we are going to know about Correlated Color Temperature or CCT in Lighting System. Welcome to Poly Notes Hub, a leading destination for engineering notes for diploma and degree engineering students.

Author Name: Arun Paul.

What is Correlated Color Temperature?

It is described as the color temperature of a light source measured in Kelvin (K), which characterizes the hue of the light emitted by the source, indicating whether it appears yellow/red (warm) or blue (cool). The CCT is calculated by comparing the color of the light source to the color of light generated by an ideal black body radiator heated to a certain temperature.

Correlated Color Temperature Chart - poly notes hub

Correlated Color Temperature Chart

Below we listed some CCT types with their values –

CCTValueOutput
1. Lower CCT ( Warm Light )2700K – 3000KIt emit a yellowish, reddish light. Examples include incandescent bulbs and candlelight.
2. Mid-range CCT ( Neutral Light )3500K – 4100KIt emit a balanced white light.
3. Higher CCT ( Cool Light )5000K – 6500KIt emit a bluish light, similar to daylight.

Applications of CCT in Lighting

Here we have listed some useful applications of CCT in lighting –

  • Warm Light: Creates a pleasant, soothing ambiance; ideal for home, restaurant, and hospitality settings.
  • Neutral Light: Ideal for offices, classrooms, and retail businesses, it provides even and comfortable illumination.
  • Cool Light: Improves alertness and visibility; ideal for hospitals, laboratories, and outdoor illumination.
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