More professional understanding of LED lights

1. Wavelength: The color intensity change of light can be described by data. This data is called wavelength. The wavelength range of the light we can see is 380 to 780 nm, in nanometers (nm);
2. Brightness: Brightness refers to the brightness of an object, defined as the luminous intensity per unit area, unit nit;
3. Light intensity: the brightness of the light source, that is, the physical quantity that represents the visible light radiation intensity emitted by the light source in a specific direction, unit candlelight (CD);
4. Flux: the total amount of visible light emitted by the light source per second, in lumens (Lm);
5. Luminous efficiency: the luminous flux emitted by the light source is divided by the power of the light source. The light source is an important indicator to measure the energy saving of the light source, the unit is lumens/watt (Lm/w);
6. Color rendering: the rendering degree of the light source to the object, usually called “color rendering index”, the unit is Ra;
7. Color temperature: The color of the light emitted by the light source is the same as the color of the light. It is radiated by the black body at a certain temperature. The temperature of the black body is called the color temperature of the light source, in Kelvin;

8. Glare: visual discomfort caused by extremely bright objects or strong brightness contrast in the field of view is called glare, and glare is an important factor affecting the quality of lighting;
9. Synchronization: Two or more LED lights can operate normally according to the program setting within a specified time, generally refers to the LED lights under the internal control mode, and the synchronization is the coordinated change of the LED lights;
10. Protection level: IP protection level refers to the classification of lamps and lanterns according to the characteristics of dust to prevent moisture. It consists of two numbers. The first number represents the level of dust to prevent outside shooting of the lamp (0-6), and the second number Indicates moisture-proof, shooting sealing degree of waterproof lamps (0 to 8). The larger the number, the higher the degree of protection.

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