What is the difference between 3000K and 4000K flood lights?

When I look for a flood light, I find that there is a parameter called color temperature. What is the difference between different color temperatures? Is it only related to the color of light?

3000 K flood lights emit warm yellow light, enquanto 4000 K flood lights are white and are closer to natural light. Other differences between 3000 K e 4000 K flood lights include:

  • Feelings the lights bring: People will feel more comfortable with 3000 K flood lights. These lights usually work as decoration lights. No entanto, 4000 K flood lights make people more alert and are more suitable to illuminate places like busy roads.
  • Cri: O 4000 K flood lights have a higher CRI than the 3000 K flood lights, and lights with a higher CRI can make people see objects more clearly.
  • Consumo de energia: Lights with a lower CRI can have higher lighting efficiency. Portanto, 3000 K flood lights may save more energy.

Read more about the CRI of lights!

O que os outros estão perguntando

Should street lights be turned off at night?

I think turning street lights on for the whole night is a waste of energy. In the late night, there will be few vehicles and pedestrians. Why can’t we turn off the light at night?

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