| Luminance |
A measure of the brightness or luminous
intensity of light, usually expressed in units of Candelas per
square meter (cd/m2) or foot Lamberts. 1 FL = 3.426 cd/m2. Unit:
Gannet (nit) |
| Intensity |
Refers to the bright level of light, the
luminous intensity per unit area.
Unit: Candlelight
(cd) |
| Luminous
flux |
The total amount of visible light
produced by lighting source per second. Unit: lumen
[lm] |
| Wavelength |
The changes of light color Strength can
be described through data, we call this data wavelength. The light
wavelength we can see is in the range between 380 to 780 nm. Unit:
nanometer (nm) |
| Light
efficacy |
Refers to the luminous flux divided by
the lighting power source. It is an important indicator to measure
the energy source. Unit: Watts per lumen (Lm/w). |
| Color
performance |
Refers to the showing extent on objects
of the lighting source, in other words, the real degree of color,
usually called "color-rendering " Units : Ra |
| Glare |
When the lighting source color is the
same as the radiator at certain temperature, the temperature of the
black body is the color temperature of the lighting source, it
describes the color of a light source by comparing it to the color
of a blackbody radiator at a given temperature. Unit: Kelvin
(k). |
| Protection
level |
The IP level is described by two
figures: the first one refers to the protection level against
dust(from 0 to grade 6), the second against water(from 0 to grade8).
Devices with a higher IP level keep the internal components safe and
clean |
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