White LED lights can be made to be look bluish, or yellowish, or anywhere in between. The blue-ness or yellow-ness of the light is called the “colour temperature”. So if you find bulbs that give a blue-ish light, it’s called “cool white”, because the light looks icy cold.
Why do my LED lights look blue?
Most “white” LEDs use a monochromatic blue source (not UV), which is then fluoresced to the lower frequencies with phosphor. Good phosphor is expensive, and more fluorescing hurts efficiency. Consequently, cheap LED sources tend to be blue and have a poor CRI.
Do LED lights put out blue light?
Do LED lights emit blue light? Yes—but no more blue light (pdf) than other lightbulbs, provided they give off the same balance of shorter and longer light wavelengths. “Warmer” light has more of a yellow tone to it, while “cooler” light, which is similar to daylight, appears a little bluer.
What color should your LED lights be?
Warm white lighting fixtures are often preferred in living rooms and bedrooms to create a cozy atmosphere. The kelvin numbers offered for LED lights are typically 2700K and 3000K. These warm white lights are a good choice to compliment earthy tones and wood furniture.
Do cool white LED lights look blue?
Cool White LED Christmas Lights
In the case of cool whites, that different color is a slight blue hue. … These days, good quality cool white has a very slight hint of blue. The color temperature of cool white lights can range from 6,000K up to 9,000K. The higher the number, the bluer the LED bulbs will have.
Are blue LED lights bad for you?
The blue light in LED lighting that is increasingly used in our homes can damage the eye’s retina while disturbing our biological and sleep rhythms, a French health authority warned in a new report.
Which LED light is best for eyes?
Warm light is best for the eyes. This includes filtered natural light and light produced by incandescent and LED light bulbs.
Are purple LED lights bad for your eyes?
The LED lights are very concentrated and can damage your eyes. This is truer than ever with today’s high power LEDs. Never look directly into LEDs and wear sunglasses. The bottom line is that LED grow lights are no more dangerous than any other type of grow light.
Are warm white LED lights bad for eyes?
New findings confirm earlier concerns that “exposure to an intense and powerful [LED] light is ‘photo-toxic’ and can lead to irreversible loss of retinal cells and diminished sharpness of vision,” the French Agency for Food, Environmental and Occupational Health & Safety (ANSES) warned in a statement.
What colors on LED lights mean?
Lower temperatures (2,700-3,000K) appear as “warm” colors, such as yellow and orange. … Higher temperatures (5,000K or more) appear as “cool” colors such as blue and green. Toward midday, light increases in temperature.
Is daylight or soft white better?
Soft white (2,700 to 3,000 Kelvin) is warm and yellow, the typical color range you get from incandescent bulbs. … Daylight (5,000 to 6,500 Kelvin) has a more bluish tone. This light color will maximize contrast for colors, making it ideal for working, reading or applying makeup.
What color light is most flattering?
People tend to look the best when illuminated by light bulbs that measure around 2700 kelvins. Most bulbs, whether incandescent, LED, compact fluorescent or halogen, are labeled “soft white/warm white” (2,700-3,000 kelvins), “bright white/cool white” (3,500-4,100 kelvins) or “daylight” (5,000-6,500 kelvins).
Which is better cool white or warm white?
Cool white is described as a bluey white that delivers a clear and clean glow, with warm white emitting a yellowy glow for a softer and more relaxing warmer tone. … On the contrary, warm white bulbs are perfect for domestic rooms that wish to create a calming and homely ambience.
Which bulb is best for eyes?
Traditional incandescent bulbs are fine, but many people are looking for a more energy efficient option. Luckily, “warm light” CFLs (Compact Fluorescent Lights) are okay for your eyes, as well as being much more efficient. They do emit UV rays, but a much smaller amount. You can also use LED bulbs or halogens.
Which light is better for eyes yellow or white?
For optimal learning performance, “cool” light is better while “yellow” or “warm” light is the most relaxing. … Yellowish white light or high CCT is below 3,500 degrees Kelvin while bluish cool light is found above 5,000 degrees Kelvin, corresponding to a low CCT.