Don's bulbs rare light bulbs and lamps glossary of terms definition of: COLOR TEMP What is COLOR TEMP? Kelvin Color Temperature is typically the industry standard rating for the color of the light produced by the light bulb. Color Temperature is the actual predominate color of the light. All light has a color. There is no such thing as pure white light, only variations. We consider the typical noon daylight as being 6500K and is the main reference point for all white light color variations, but, as the sky is blue, natural daylight has a bluish hue. 1200K is typical for a candle. 2700K is typical for an incandescent light bulb which is much more yellow light than daylight. 3000K is typical for studio lighting. The higher the kelvin temperature, the bluer the light. There are two main units in describing the color portion of light, one being kelvin Color Temperature, the other being the Color Rendering Index (CRI), and, a third unit, light output intensity (lumens, or, CP) is also an important factor in describing light. references for this page: COLOR TEMPERATURE, CCT, COLOR TEMP, CORRELATED COLOR TEMPERATURE, KELVIN references to this page: /10K, /3K, /4K, COLOR RENDERING INDEX, CONVERSION TABLE, FULL SPECTRUM, VOLT