What color should you choose for LED lights in 2020

Conventional bulbs begin to be increasingly replaced with LED bulbs in homes, offices, commercial and industrial, and people are probably wondering if this investment is efficient. LED bulbs have a lifespan of at least 20 years and, although there are more affordable options sometimes their prices are a disincentive to many people who do not consider necessary to replace conventional light bulbs with LED bulbs. However, these light sources benefiting countless technological advances that have been made over the years and provides a stream of bright light with low energy consumption.

In general, conventional light bulbs offer a warm light, yellowish. LED bulbs are available in a variety of colors. Lighting homes, however, are elected in general LED lamps that provide light warm or cold light. Cold light is very similar to natural light and the kind of light that we find in commercial spaces, offices or industrial premises, being light 'white'. Warm light has a yellowish shade that provides an air space a welcoming, warm and is probably the most common choice for housing.

As human beings, our visual system is adapted to be stimulated by daylight, with a complete and balanced spectrum. It is noted that the intensity of the visual sensation is at a maximum for a wavelength of 555 NM. As I said earlier, artificial lighting sources could not be granted by the type of light emitted. LED bulbs have at least 3 types of light:, cold light, neutral and warm. This feature is measured in Kelvins and is called color temperature (CCT).

Higher color temperature (6000 K) corresponds to cold colors (blue-green range) and lower color temperatures (2700-3000 K) for warm colors (yellow-red range). So, depending on color temperature, color apparent light sources are classified into three categories:

• Hot (white - yellow T ≤ 3300 K)
• Intermediate (White, 3300 T ≡ K - 5500 K)
• Cool (bluish white T ≥ 5300 K).

For comparison, the sun emits an hour after sunrise and one hour before sunset is 3000 - 3600K, with 2-3 hours before the set 4500 - 4800K and the noonday 5000 - 6000K.

Lighting can have 3 types of white light

Warm white. We use it in the recreation room, (e.g. In the lounge or dining room) or in any room where you have walls painted in white and pastel colors. It is perfect for illuminating the warm colors and golden objects in stores. It is also the only type of light used in restaurants, hotels, cafes.

Cool white. Color cool white is a bluish white, according to the room where we are for a relatively short period of time (e.g. Hall), in the room where the walls are painted in dark colors or the furniture is dark, in the office or illuminating shop windows. It’s the ideal color to accent the colors blue and green lighting where we use metal objects or silver.

Neutral white. Usually it is best to use a neutral light in the workspace, where we need more natural light, clear for accomplishing tasks.

So, in search of the wanted bulb, do not forget to look for the type of light emitted. Also in the product names, acronyms can be found as WW (Warm White - warm white), NW (Neutral White, Daylight White - Neutral White) or CW (Cold White - cool white).