Question 2: Is it better to use white light or yellow light for the study desk lamp? If the desk lamp in the study is yellow, it is better to use incandescent lamp. The light is soft and not dazzling, which is especially good for children's eyesight.
Question 3: Is the reading desk lamp yellow or white? The color rendering of yellow is better than that of white, but it generally consumes more energy and lacks brightness. But generally not as good as strongpoint. It is recommended to use yellow light for reading, but the brightness needs to be enough. If general lighting suggests fluorescent lamps.
Question 4: Whether the desk lamp used by primary school students for homework is yellow or white is the most suitable for reading. It is easy to cause eye fatigue after a long time; The warm light tube line is yellow, with uniform spectral distribution, soft light and high illumination; Fluorescent lamps (light sticks) have soft light according to different phosphor materials, which can be divided into cold light and warm light, but the brightness is more stable than fluorescent lamps, causing visual fatigue; The traditional light bulb, but with insufficient brightness, belongs to the thermal light source, but the light is * * *, the electroluminescent color is white or blue, and the light color is yellowish, which will also cause visual fatigue for a long time and have a strong sense of * * * to the eyes. It is suggested to use warm fluorescent LED as cold light source because it has a large blue-green color in the spectrum.
Question 5: Is the yellow light or white light of the desk lamp better? Which yellow light of eye protection desk lamp is better and tends to be natural and soft? White light is dazzling and bad for eyes.
Question 6: Is it better to use white light or yellow light for reading on the desk at night? It is recommended to use a yellow desk lamp. The light is warm, warm, comfortable, stable and not dazzling.
LED lamps can't be used for short-distance reading and writing, because the short-wave high-energy light source emitted by LED lamps-blue light can directly penetrate the cornea and lens, and can directly reach the macular area, causing burns to the retina of human eyes.
It is recommended to use Kanglvyuan 24V DC incandescent lamp, the first DC incandescent lamp in China, which is designed and manufactured in strict accordance with the national reading and writing lamp standard. It was patented in China and developed by a doctor. There is no radiation, no stroboscopic, the color rendering index is as high as 100Ra, and the color temperature is 2800k, which is the most comfortable and stable, equivalent to the sunshine about 40 minutes after sunrise. Eyes can easily accept and care for them.
Question 7: Is it better for students to use LED lights, white light or warm light? It is recommended to choose warm white light, which is soft and suitable for reading.
Color temperature of LED light source:
People use the absolute temperature of the complete radiator equal to or close to the color temperature of the light source to describe the color table of the light source (the color seen when the human eye directly observes the light source), also known as the color temperature of the light source. Color temperature is expressed as absolute temperature k, and different color temperatures will make people have different emotional reactions. Generally, the color temperatures of light sources are divided into three categories:
Warm color lamp
The color temperature of warm light is below 3300K K K. Warm light is similar to incandescent lamp, with more red components, giving people a warm, healthy and comfortable feeling. Suitable for families, houses, dormitories, hospitals, hotels and other places, or places with relatively low temperature.
warm white
Also called intermediate color, its color temperature is between 3300 K and 5300 K. Warm white light and soft light make people feel happy, comfortable and serene. Suitable for shops, hospitals, offices, restaurants, restaurants, waiting rooms and other places.
cold light
Also known as daylight color, its color temperature is above 5300K, and the light source is close to natural light, which makes people concentrate. Suitable for offices, conference rooms, classrooms, studios, design rooms, library reading rooms, exhibition windows and other places.
Question 8: Is the desk lamp yellow or white? It is recommended to use a yellow desk lamp. The light is warm, warm, comfortable, stable and not dazzling.
LED lamps can't be used for short-distance reading and writing, because the short-wave high-energy light source emitted by LED lamps-blue light can directly penetrate the cornea and lens, and can directly reach the macular area, causing burns to the retina of human eyes.
It is recommended to use Kanglvyuan 24V DC incandescent lamp, the first DC incandescent lamp in China, which is designed and manufactured in strict accordance with the national reading and writing lamp standard. It was patented in China and developed by a doctor. There is no radiation, no stroboscopic, the color rendering index is as high as 100Ra, and the color temperature is 2800k, which is the most comfortable and stable, equivalent to the sunshine about 40 minutes after sunrise. Eyes can easily accept and care for them.
Question 9: Is the desk lamp used by primary school students for homework yellow or white? Warm fluorescent lamps are recommended.
LED is a cold light source, with a large blue-green spectrum, which has a strong sense of * * * for eyes, and it is easy to cause eye fatigue after a long time;
The traditional light bulb is a thermal light source, with uniform spectral distribution, yellowish color and soft light, but insufficient brightness will also cause visual fatigue after a long time; According to different fluorescent materials, fluorescent lamps (light sticks) can be divided into cold light and warm light. Electroluminescence is white or blue, and the illumination is high, but the light is * * *, which leads to visual fatigue; Warm light tube line is yellow, but the brightness is more stable than fluorescent lamp, and the light is soft, which is most suitable for reading.