Incandescent Light Bulb Color Temperature

When a piece of metal is heated the color of light it emits will change.

Incandescent light bulb color temperature.

Since electric energy they use costs more than the cost of. Soft white 2 700 to 3 000 kelvin is warm and yellow the typical color range you get from incandescent bulbs. Soft white 2700k 3000k bright white cool white 3500k 4100k and daylight 5000k 6500k. When it reaches a temperature of 2 700º kelvin about 4 400º f or 2 426º celsius its glow will roughly match the colour of light emitted by your typical incandescent lightbulb a rather yellowish colour.

In the old days of lighting where most lighting options were incandescent color temperature was not a big issue. Traditionally incandescent bulbs have given off a warm yellow colored light. Color temperature is approximately proportional to v 0 42. When you think incandescent you know what light bulb color temperature to expect.

A 5 reduction in voltage will double the life of the bulb but reduce its light output by about 16. Here s a breakdown of light bulb color temperature. The three primary types of color temperature for light bulbs are. You can actually determine the temperature of hot iron by measuring its color.

How to choose the right kelvin color temperature. Household fixtures are commonly found in color temperatures on the kelvin scale of 2700k warm incandescent 3000k warm white halogen and 3500k household fluorescent. Color temperature is a characteristic of visible light that has important applications in lighting photography videography publishing manufacturing astrophysics horticulture and other fields. Led bulbs on the other hand are available in a variety of colors from classic warm white to cool bluish white that mimics natural daylight.

Long life bulbs take advantage of this trade off in applications such as traffic signal lamps. The surface temperature of incandescent light bulbs varies from 150 to more than 250 degrees whereas compact fluorescent light bulbs have a surface temperature of 100 degrees fahrenheit. This color begins as red in appearance and graduates to orange yellow white and then blue white to deeper colors of blue. Compact fluorescent light bulbs typically last longer than incandescent bulbs and vary in color temperatures.

An incandescent light bulb. The higher the degrees kelvin the whiter the color temperature. This light gives a warm and cozy. Light bulb color temperature is represented in the unit of absolute temperature kelvin noted by the symbol k.

The color temperature of daylight varies but is often in the 5000k to 7000k range. The color temperature of a light source is the temperature of an ideal black body radiator that radiates light of a color comparable to that of the light source.