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Important Product Information: Color Temperatures ABNT Standard Review
June 11, 2018, 3 p.m.

According to the current Brazilian standard, ABNT NBR ISSO / CIE 8995-1: 2013- Workplace lighting, item 4.6.1, “Choosing the appearance of color is a psychological, aesthetic and what is considered natural matter. The choice depends on the illuminance, colors of the room and furniture, climate and application. In warmer climates, the color appearance of a colder light is generally preferred, and in cold weather the color appearance of a warmer light is preferred. ”

Still according to the standard, the “color appearance” of a light bulb refers to the apparent color (lightness of the lamp) of the light it emits.

It can be described by its correlated color temperature. Lamps are typically divided into three groups according to their correlated color temperatures (Tcp) as described below:



Color Appearance

Correlated color temperature

White hot

Below 3,300 K

Neutral white

From 3,300 to 5,300 K

Cold white

Above 5,300 K