People use the absolute temperature of a complete radiator that is equal to or similar to the color temperature of the light source to describe the color table of the light source (the color that the human eye sees when the light source is directly observed), also known as the color temperature of the light source. Color temperature is expressed in absolute temperature K. Different color temperatures will cause people to have different emotional reactions. We generally divide the color temperature of light sources into three categories:

Warm light: The color temperature of warm light is below 3300K. The color of warm light is similar to that of incandescent light, and the red light component is more, giving people a warm, healthy and comfortable feeling. It is suitable for families, residences, dormitories, hospitals, hotels and other places , or where the temperature is relatively low.

ZF-002-60120-72W Backlit led panel

Warm white light: also called intermediate color, its color temperature is between 3300K-5300K. .The soft light of warm white light makes people feel pleasant, comfortable and peaceful. It is suitable for shops, hospitals, offices, restaurants, restaurants, waiting rooms and other places.

Cool color light: also known as daylight color, its color temperature is above 5300K, the light source is close to natural light, has a bright feeling, makes people concentrate, suitable for offices, conference rooms, classrooms, drawing rooms, design rooms, library reading rooms, Exhibition windows, etc.

Color rendering: The degree of color rendering of the light source to the object is called color rendering, that is, the degree of fidelity of the color. The light source with high color rendering shows better color performance, and the color we see is closer to the natural color. Low light sources have poorer performance of color, and we see more color deviations.

Why is there a difference in color rendering? The key lies in the spectral characteristics of the light. The wavelength of visible light is in the range of 380nm to 780nm, which is the red, orange, yellow, green, cyan, and blue that we see in the spectrum. , the range of violet light, if the proportion of each color light contained in the light emitted by the light source is similar to that of natural light, the color seen by our eyes will be more realistic.

We generally use the color rendering index to characterize the color rendering. Under the radiation of standard light source, the color rendering index is set at 100. When the color scale is illuminated by the test light source, the degree of visual distortion of the color is the color rendering index of this light source. The larger the color rendering index, the less distortion, and conversely, the greater the distortion, the smaller the color rendering index. Different places have different requirements for the color rendering index of light sources. In the International Lighting Association, the color rendering index is generally divided into five categories: