How to select lighting fixtures after home decoration is completed

Light parameters
To achieve better lighting effects or lighting atmosphere, we need to have a better understanding of lighting. I believe that many people’s understanding of lamp parameters is still limited to wattage. In fact, the three main parameters that truly affect the brightness, cooling and heating effects, and lighting effects of lamps are light intensity, color temperature, and color rendering index.
#Light intensity
Light intensity is a physical term that refers to the luminous flux of visible light received per unit area. Abbreviated as illuminance, in lux or Lx. Used to indicate the intensity of light and the amount of illumination on the surface area of an object.
However, there is a misconception here that we often equate the power of lamps with the intensity of light. In fact, there is no necessary connection between the two, as the luminous efficiency of different types of lamps varies greatly. For example, LED lamps with a brightness of around 8W and incandescent lamps with a brightness of 40W are actually equivalent.
Recommended room lighting intensity: 100-200Lx for the entrance and storage room, 100-300Lx for the living room, 100-200Lx for the bedroom, 250-500Lx for the study, and 100-200Lx for the dining room, kitchen, and bathroom.
#Color temperature
The unit of color temperature is K (Kelvin, also known as the thermodynamic temperature unit in our physics class). Physics states that when a standard blackbody (idealized object) is heated and the temperature rises to a certain level, its color gradually changes from deep red to light red, orange to yellow, white to blue. When a light source has the same color as a blackbody, we refer to the absolute temperature of the blackbody at that time as the color temperature of the light source. Low color temperature light, with more red radiation, has become what we often refer to as warm light; The increase in blue radiation of high color temperature light becomes what we call cold light.
#Color rendering index
The color rendering index refers to the degree to which light restores the color of an object. The higher the color rendering index, the stronger the degree of restoration, while a low color rendering index can exacerbate visual fatigue. The color rendering index of sunlight is 100. Generally, outdoor lighting requires a color rendering index of 65 or above, and indoor lighting requires a color rendering index of 80 or above. It is usually suitable to use low color temperature light in a quiet atmosphere, and high color light is suitable for work. The upper limit for lighting suitable for general households is 6500K color temperature.
The lighting intensity, color temperature, and color rendering index will mutually affect each other, so selecting the appropriate color temperature and color rendering index lamps under the appropriate lighting intensity can achieve a good lighting experience.
The maximum color temperature in the living room should not exceed 5000K, the restaurant should not exceed 3000K, the bedroom should be between 3000-4000K, and the color rendering index should be above 80; In the working area, the color temperature is between 4000-5000K and the color rendering index is above 90.