平へい均きん演えん色しょく評ひょう価か数すう

noun

general color rendering index; Ra

Technical term in lighting and color science; measures how accurately a light source renders colors compared to a reference illuminant. Often abbreviated as Ra.

• このLED電でん球きゅうの平へい均きん演えん色しょく評ひょう価か数すうは90以い上じょうです。

  This LED bulb has a general color rendering index of 90 or higher.