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LED industry terminology explanation

LED industry terminology explanation


[LED Terminology] Color temperature refers to the value of the color of light expressed by the temperature of a black body (a virtual object that can theoretically completely absorb external light). The unit is K (Kelvin).

    The wavelength distribution (hue) of light emitted by a black body varies with temperature. Color temperature is often used to indicate the light color of fluorescent lamps and white LEDs, and the degree of whiteness a monitor can display.

Generally speaking, it looks red when the color temperature is low, and blue when the color temperature is high... Refers to the value of the color of light expressed by the temperature of a black body (a virtual object that can theoretically completely absorb external light). The unit is K (Kelvin). The wavelength distribution (hue) of light emitted by a black body varies with temperature. Color temperature is often used to indicate the light color of fluorescent lamps and white LEDs, and the degree of whiteness a monitor can display.

    Generally speaking, it looks red when the color temperature is low, and blue when the color temperature is high. Taking white LEDs as an example, the general varieties that use blue LED chips and yellow phosphors in combination (average color rendering index Ra is 70 or more) are mostly daylight colors with a color temperature of 6000K or more, and add red phosphors and other red light bulb color LEDs. The color temperature is mostly below 3000K. The light color of the phosphor combined with the blue LED chip can be improved, and the color temperature above 4000K and above 5000K can also be obtained. The color temperature can be used according to the installation place of the lighting appliance.

       For example, it is best to set up lighting fixtures with a high color temperature close to the sunlight in offices, etc., while most households and restaurants prefer to use lighting fixtures with a low color temperature close to incandescent lamps.