An important parameter in the selection of light bulbs is the light color of the light bulb, which is measured in degrees Kelvin (K). The fewer Kelvin degrees, the more yellow the light, the more - bluer.

If the light of incandescent lamps and halogen lamps can only be warm white, then the light of compact fluorescent lamps and LED lamps can be:

warm white (2500 – 3200 K),

white (3200 – 4000 K),

cold white (more than 4000 K).

The most suitable lighting for residential lighting is light bulbs with a warm white light color. Bulbs with a whiter light color are suitable for workplaces and offices, while light around 4000 K is suitable for factories and car repair shops.