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Definition of Color Temperature of LED Lights

Color temperature is a characteristic of visible light that has important applications in lighting, photography, videography, publishing, manufacturing, astrophysics, and other fields. The color temperature of a light source is the temperature of an ideal black-body radiator that radiates light of comparable hue to that of the light source. Color temperature is conventionally stated in the unit of absolute temperature, the kelvin, having the unit symbol K.

Color temperatures over 5,000K are called cool colors (blueish white), while lower color temperatures (2,7003,000 K) are called warm colors (yellowish white through red).

Lightsky color temperature range
Warm white (3000K150K) Homes, restaurants, hotel lobbies, boutiques
Neutral white(4000K250K) Showrooms, bookstores, office areas
Cool white(5700K300K) Museums, jewelry stores, jewelry showcase windows, hospitals

We require customers write down the color temperature you need when you place the order to avoid any misunderstanding with regards to it, especially for customers who have particular requirements for color temperature.

Color rendering index

How colors appear when illuminated by a light source. Color rendition is generally considered to be a more important lighting quality than color temperature. Most objects are not a single color, but a combination of many colors. Light sources that are deficient in certain colors may change the apparent color of an object.

The Color Rendition Index (CRI) is a 1-100 scale that measures a light source's ability to render colors the same way sunlight does.

The top value of the CRI scale (100) is based on illumination by a 100-watt incandescent light bulb. A light source with a CRI of 80 or higher is considered acceptable for most indoor residential applications.