What is Kelvin
Kelvin is a unit of measurement used to quantify the color temperature of light sources. It is the SI unit of thermodynamic temperature and is denoted by the symbol K. The kelvin scale is an absolute scale that starts at 0 kelvin, representing absolute zero, which is the point at which a thermodynamic system has its lowest energy. The kelvin scale is different from the Fahrenheit and Celsius temperature scales as it is not expressed in degrees and does not have negative values.
The color temperature of a light source is a characteristic that describes the color appearance of the light emitted. It is measured in kelvin and indicates whether the light appears warm or cool. Lower color temperatures, such as 2700K to 3000K, are associated with warm or yellowish light, similar to the color of incandescent bulbs. Higher color temperatures, such as 5000K to 6500K, are associated with cool or bluish light, similar to daylight or natural sunlight.
人感センサーを活用した省エネソリューションをお探しですか?
PIR人感センサー、人感センサー搭載省エネ製品、人感センサースイッチ、商業施設向けOccupancy/Vacancy(在室/不在)ソリューションについては、お気軽にお問い合わせください。
Understanding the color temperature of light sources is important in lighting design as it can greatly impact the mood, ambiance, and functionality of a space. Different applications may require different color temperatures to achieve the desired lighting effect. For example, warm color temperatures are often used in residential settings to create a cozy and inviting atmosphere, while cool color temperatures are commonly used in commercial and task lighting to promote alertness and productivity.
こちらの商品もおすすめです
よくある質問
5000Kの光は目に悪影響を及ぼすか
駐車場、産業用照明、その他の広大な屋外施設など、5000Kを超える色温度の場所や、高強度の照明が必要とされる特定のケースでは、目に悪影響を及ぼす可能性があるため長時間の作業は推奨されません。
Which Is Brighter 3000K or 5000K
A 5000K LED bulb emits a bright daylight color. This type of color temperature is ideal for areas where you need a well-lit and energizing environment.
Which Is Brighter Cool White or Neutral White
Installing cool white LEDs will provide a more intense and clearer illumination. Consider places like hospitals or professional kitchens, where it is crucial to have bright and clear lighting for visibility. On the Kelvin scale, this type of white light typically falls within the range of 5000-6500K.
昼光色に最も近いLEDライトとは
定義上、昼光色(デイライトホワイト)として知られる色温度6500Kの光を照射するLED電球は、自然な太陽光と非常に似た見え方になります。















