1. White light has perfect color characteristics, but it can damage the vision that adapts to dark light, and it takes a certain amount of time to re-adapt after a certain light source is extinguished.

The LED color temperature is below 3300K, and the light color is reddish to give a warm feeling; There is a calm atmosphere, a warm feeling; When illuminated with a low LED color temperature light source, the red color can be more vivid.

The LED color temperature is in the middle of 3000-6000K, and there is no particularly obvious visual psychological effect in this tone, and there is a refreshing feeling; That's why it's called "neutral" LED color temperature. When illuminated by a medium LED color temperature light source, the blue color has a cool feeling.

The LED color temperature is more than 6000K, and the light color is blue, giving people a cold feeling, and when the high LED color temperature light source is used, the object has a cold feeling

2. Red light is often used for night vision. The red light does not cause your pupils to constrict too much and the eyes do not need to readjust to the darkness once the red light is extinguished. Red is also commonly used as a "safe" color in monochrome photo processing because it does not damage the negative being printed, and yellow light has some of the advantages of red and white light. Another advantage of yellow light is that when you read, you can reduce the reflection and glare of light that causes eye strain due to long readings.

3. Green light can also be used for night vision, and green light is also especially suitable for reading maps or charts at night. It is also less easily spotted by night vision equipment, so it is easy to detect by the human eye, and the green light is less bright than the red light.

4. Blue light can be used to read maps at night and is often favored by military personnel because it increases the level of contrast. It can also be used as a backstage working light color for cinemas and performances.

5. Blue-green light has similar night vision advantages of green light and blue light, but with the improvement of the color characteristics of blue-green light, some users like to use blue-green light for this reason.

6. Infrared red light is used with night vision equipment. Otherwise, infrared light cannot be seen with the human eye.

7. Ultraviolet light is usually used to identify whether banknotes are counterfeit or not, some UV LED illuminators are popular in nightclubs and parties, they are used to make fluorescent substances emit brighter light.