Semiconductor light-emitting diode luminaire lighting terminology

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

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

Light intensity: refers to the brightness of the light source. That is, it means the physical quantity of the visible light radiation emitted by the light source in a certain direction and range. Unit: Candlelight (cd)

Luminous flux: The sum of the amount of visible light emitted by the source per second. Unit: Lumens (Lm)

LED indoor lighting effect: the luminous flux emitted by the light source divided by the power of the light source. It is an important indicator of energy saving in light sources. Unit: lumens per watt (Lm/w).

Color rendering: The degree to which a light source is presented to an object, that is, the degree to which the color is realistic. Usually called the "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 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 is a very bright object in the field of view or a strong contrast of brightness. 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 be operated normally according to the program in a specified time. Generally speaking, the LED lights of the internal control mode are the basic requirements for the coordinated change of the LED lights.

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