What is the difference between neutral light and warm white light?

1. Difference in brightness: Neutral light generally has a color temperature of 4000K, which is cooler, while warm white light has a color temperature of 3000K, which is yellowish. Warm light is 2700K and natural light is 5500K.

2. Color temperature difference: Under the illumination of a high color temperature light source, if the brightness is not high, it will give people a cold atmosphere; under the illumination of a low color temperature light source, if the brightness is too high, it will give people a stuffy feeling. Warm light feels similar to incandescent light. Neutral light is bright and dazzling. Natural light is good for taking photos.

3. Difference in scope of application: warm light is suitable for use in rooms, and neutral light is suitable for use in offices and kitchens. It is generally better to use neutral light in the living room.

4. Difference in comfort: Warm white light has an atmosphere, is not very dazzling, and feels soft.

5. Color differences: Neutral light is a cool color system, and warm white light is a neutral color system.

Extended information:

Color temperature and white balance

A concept closely related to color temperature is white balance. The so-called white balance refers to the process of restoring white to white. We know that if we are in an environment with a yellow light source, then the white in this environment will be rendered yellow, because our human eyes have the "intelligent color cast correction" function.

Even if we enter such an environment, it will not take long for us to adapt to the color of the light source in this environment, so we may not feel that something abnormal is happening with the white color.

People can correct this color shift through the magic of the brain, but the camera does not have this ability, so at this time it is necessary to use the ability of white balance to achieve the effect of correcting the color shift.

We can achieve the white balance effect by setting an internal color temperature value for the camera. When the internal color temperature value is consistent with the outside world, the camera can correctly represent white. For example, the outside color temperature is 4000K now. When we set the internal color temperature to 4000K, white can be restored to white by the camera.

If we set the internal color temperature value to 5000K, the picture will be warmer at this time. This is because when we set the internal color temperature value to 5000K, the machine thinks that the external color temperature is warmer. It is blue, so yellow needs to be added to neutralize the blue to achieve the effect of restoring white. However, the actual color temperature of the outside world is 4000K, so the picture will be warmer at this time.

Similarly, if the external color temperature is 4000K, when we set the internal color temperature value to 3000K, the picture will be cooler.

Baidu Encyclopedia-Color Temperature