What s the difference between cold light and warm light White light is that kind of light

The light emitted by fireflies can be called cold light, which is characterized by: the light source itself does not generate heat; The light that heats up on the contrary is called warm light. White light has cold light and warm light, depending on whether its light source is hot. Nowadays, human beings have created fluorescent lamps, which emit cold light, and have their own unique applications.

There are two kinds, and the art angle is upstairs.

From a physical point of view, there is no warm light, there is cold light. Cold light is light that is not emitted through the thermal effect. Others are produced by thermal effects.

Cold light is light that is not accompanied by heat release and is environmentally friendly – it is highly energy efficient, and the opposite is true.

White doesn't belong.

Cold: blue, green, purple.

Warm: red, orange, yellow.

What is the difference between cold light and warm light?

The main difference is the color temperature, generally speaking, the warm light will be reddish, giving people a warm feeling, suitable for interior decoration; The cold light is blue-light, and will not heat up during operation, and is often used for the backlight of the marking panel, staircase corridor, etc.

What are the tips for choosing lights.

1. Look at the packaging brand.

There are many varieties of bulbs on the market, consumers must choose qualified products when choosing, in order to ensure the quality of the product, it is best to choose a more well-known product, such as Opple, NVC, Sanxiong Aurora and so on.

2. Look at the bulb performance.

When buying a bulb, you should also test the use of the bulb, for example, some businesses have that regulator, then you can adjust it to a 150W gear, and then after the light is on, it is necessary to pay attention to whether the human body can be inducted, so that the start time will be short.

3. Look at the state after work.

After the test, it is necessary to look at the temperature of the bulb, generally speaking, the lower its temperature, the better the quality of the bulb, and at the same time, it is also necessary to pay attention to whether there is a black line after the bulb test, generally speaking, the shorter the black line, the better.

4. Look at the interference.

Electromagnetic compatibility can be said to be a device in every electrical appliance, which is to pass the test, to know that this test will be more complicated, so when choosing lamps, be sure to see if there is a sign that has passed the test.

Differences: white light is generally at a color temperature of 4000K, which is cooler; Warm white light at 3000K color temperature, yellowish.

LED lighting is generally divided into two types: cold white light and warm white light, the color temperature of cold white light is 4000K-8000K, and the higher the color temperature. The whiter the light color, the ordinary light is cool white light, the color temperature is about 5500K, the warm white light color temperature is 2500K-4500K, and the lower the color temperature, the more yellow the light color. Household incandescent light bulbs are warm white light, with a color temperature of about 3000K.

The difference between warm white light and white light: different colors, different color temperatures, different uses, different comforts.

1. The color is different

Warm light will look more yellowish, while white light will look more white and cooler.

2. The color temperature is different

The color temperature of warm light is generally around 2700K, while the color temperature of white light is generally around 4000K.

3. Different uses

Warm light is more suitable for bedrooms, dining rooms, and other spaces, while white light is more suitable for living rooms, offices, kitchens, study rooms, and other spaces.

4. Comfort is different

The warm light is softer, not dazzling, and a little dim, so it can create a romantic, warm atmosphere. The light of the white light is particularly bright, and it will even be a little dazzling with the lack of luck, and it will not create a romantic atmosphere.

Maintenance of white light interferometers

1. The instrument should be properly placed in a dry and clean room to prevent vibration, and the base should be supported when the instrument is moved to prevent the deformation of the guide rail.

2. When the optical parts are not in use, they should be stored in a clean dry basin to prevent mildew. Reflectors and beamsplitters are generally not allowed to be wiped, and when it is necessary to wipe, you must carefully dust off the dust with a spare brush, and then use a degreasing cotton ball to drop alcohol and ether mixture to wipe lightly.

3. The transmission parts should be well lubricated. In particular, the guide rail, screw rod, nut and shaft hole part should be lubricated with T5 precision instrument oil.

4. When using, the force of each adjustment part should be appropriate, and do not force rotation or hard wrenching.

5. The screw rod of the guide rail surface should be protected from scratching and rusting, and it should still be in a state of no loss of oil after use.

6. The screws on the finely adjusted instrument parts are coated with red paint, and should not be rotated without authorization.

The color temperature of cold white light and warm white light of downlight is different, the color temperature of white light is lower, and the color temperature of warm white light is higher.

The color temperature of cold white light and warm white light of downlight is different, and the cold white light is very bright and has a high degree of color reproduction, which is suitable for use in exhibition halls or places that need to be operated, such as clothing store showcases, kitchens, etc.; Warm white light looks yellow, which is suitable for creating a warm and romantic atmosphere, such as a café, bedroom, etc.

Downlights are generally lamps with a screw lamp head, which can be directly installed with incandescent lamps or energy-saving lamps, and are a kind of lighting fixtures that are embedded in the ceiling and emitted under the light. Its biggest feature is that it can maintain the overall unity and perfection of architectural decoration, and will not destroy the perfect unity of ceiling art because of the setting of lamps and lanterns. This recessed luminaire is embedded in the ceiling, and all light is projected downwards and is a direct light distribution.

Different reflectors, lenses, blinds, and bulbs can be used to achieve different light effects. Downlights do not take up space and can add a soft atmosphere to the space, if you want to create a warm feeling, you can try installing multiple downlights to reduce the feeling of pressure in the space. Generally, it is used more in hotels, homes, and cafes.

The color temperature of warm white light is lower, to put it simply, warm white light lighting is similar to sunlight lighting, that is, there is a little yellow in the white light, and the color temperature of white light is higher than that of warm white light, and the color temperature of cold white light is higher, such as the light emitted by fluorescent lamps is cold white light.

Differences: White light is generally at 4000K color temperature with a cooler color, while warm white light is at 3000K with a yellowish color.

Color temperature and brightness: under the illumination of high color temperature light source, if the brightness is not high, it will give people a cold atmosphere; Under the illumination of a low color temperature light source, the brightness is too high, which will give people a stuffy feeling.

LED lighting is generally divided into two types: cold white light and warm white light, the color temperature of cold white light is 4000K-8000K, and the higher the color temperature. The whiter the light color, the ordinary light is cool white light, the color temperature is about 5500K, the warm white light color temperature is 2500K-4500K, and the lower the color temperature, the more yellow the light color. For example, household incandescent light bulbs are warm white light, and the color temperature is about 3000K.

A color temperature above 5300K is called cool light, and a color temperature below 3300K is called warm light.

The differences are as follows: 1. The amount of energy contained is different. Depending on the color temperature, wavelength, and frequency, the feeling of warm and cold colors will also be different.

2. The applicable scenarios are different. Cool light is suitable for use in shop windows, large factory construction sites, shopping malls, etc., and warm light is suitable for family homes.

3. Cool light and warm light can affect people's emotions to varying degrees. In general, cold and warm are used in combination, using Chinese philosophy to explain the harmony of yin and yang, complementing each other, and different environments have different collocations.

1. Brightness difference: white light is generally at 4000K color temperature, with a cold color, and warm white light is at 3000K color temperature with yellow. Warm light is 2700k and natural light is 5500k.

2. Color temperature difference: under the illumination of high color temperature light source, if the brightness is not high, it will give people a gloomy and cold atmosphere; Under the illumination of a low color temperature light source, the brightness is too high, which will give people a stuffy feeling. The warm light is similar to the feeling of incandescent lights, the white light is bright, dazzling, and the natural light shoots are very good.

3. Difference in scope of application: warm light is suitable for use in rooms, and white light is suitable for use in offices and kitchens. It is generally good to use positive white light in the living room.

4. Difference in comfort: warm white light has an atmosphere, not very dazzling, and feels soft.

5. Color difference: white light is a cold color, and warm white light is a medium color.