Wavelength: The change of color intensity of light can be described by data, which is called wavelength. The wavelengths of light we can see range from 380 to 780 nm. Unit: nanometer (nm)

Brightness: Brightness refers to the degree of brightness and darkness of an object, which is defined as the luminous intensity per unit area. Unit: nit (nit)

Light intensity: refers to the brightness of the light source. That is to say, a physical quantity that represents the intensity of visible light radiation emitted by a light source in a certain direction and range.

Unit: Candlelight (cd)

Luminous flux: The total amount of visible light emitted by a light source per second. Unit: Lumen (Lm)

Light Efficiency: The luminous flux emitted by the light source divided by the power of the light source. It is an important indicator to measure the energy saving of light source. Unit: lumens per watt (Lm/w).

Color rendering: The degree to which the light source presents the object, that is, the fidelity of the color. Usually called "color rendering index" unit: Ra.

Color temperature: When the color of the light emitted by the light source is the same as the color of the light radiated by the black body at a certain temperature, the temperature of the black body is called the color temperature of the light source.

Unit: Kelvin (k).

Glare: There are objects with extremely high brightness or strong contrast of brightness in the field of vision, and the visual discomfort caused by it is called glare. Glare is an important factor affecting the quality of lighting.

Synchronization: Two or more LED lights can operate normally in the way set by the program within an unspecified time, generally referring to the LED lights of the internal control mode. Synchronization is the basic requirement for the coordinated changes of the LED lights.

Protection level: IP protection level is to classify lamps according to their dustproof and moisture-proof characteristics. It consists of two numbers. The first number represents the level of lamps and lanterns that are dust-proof and prevent foreign objects from invading people (levels 0-6). ), the second number represents the degree of sealing of the lamp against moisture and water intrusion (levels 0-8). The larger the number, the higher the protection level.