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What's the the basic unit used to marke the characteristics of the LED light by floodlights lsd





What's the the basic unit used to marke the characteristics of the LED light by
Article Posted: 08/14/2013
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What's the the basic unit used to marke the characteristics of the LED light


 
Advice,Electronics,Writing
LED Luminous Flux (lm) Because the human eye have different sensitivity to different wavelengths of electromagnetic waves, we can not directly use the radiated power of the light source or the radiant flux to measure the light energy, the unit based on the amount of light the human eye sense must be used —- the luminous flux measure. Expressed by the symbol F flux in lumens (lm).

LED luminous intensity (cd) The Flux illustrates the total light energy emitted by the light source to the surrounding space. The flux distribution the different light emitted in the space is different. The unit of luminous intensity is candela, the symbol is cd, which represents the light flux emitted at solid angle of the light source steradian of a unit (formed by the surface angle against the point light source) of. 1 cd = 1 lm / 1 sr (sr: solid angle steradian units).

LED Brightness (cd/m2) Brightness is intensity of the emitted light from a certain direction that the eyes see objects. The units is candela / square meter [cd/m2], the symbol is L, indicates the luminous flux of per unit area in the direction of light at a specific unit solid angle ??, which is equal to 1 candelas luminous intensity issued on one square meter surface.

LED Color Temperature (Color Temperature) When the color of the light the light source emitted is the same as the color radiated by the black body at a temperature, the black body temperature is called the color temperature of the light source, the absolute temperature K is used to represent. When the light source color of the light emitted by the black body radiation at a temperature is close to a color, the black body temperature is called the correlated color temperature of the light source. Nowadays,the LED tube light is the representative of residential lighting that is most widely used in daily life,which enjoys a great popularity in our corridor, restaurants, shopping, leisure and entertainment, galleries, exhibition halls and other indoor environments, the LED flood light as the representative of the outdoor decorative lighting is mainly used in city squares, parks, stadiums, the facades of large commercial buildings and hotel, stage, waiting rooms, airports etc. where the higher brightness lighting is needed to illuminate, Lead Lighting adopts high brightness SMD as the light source of the LED tube and highly integrated and high brightness COB as the light source of the LED flood light, which fully guaranteed stability and soft light of the LED tube light and octahedron breadth and brightness irradiation range of the LED flood light, while the low voltage constant current driver converts the AC into DC so that improve energy efficiency and reduce the waste heat energy and stroboscopic effect exciting the human eye, the most important is that the LED lighting without adding mercury and other heavy metals harmful to our body and pollution the environment, that’s why the LED light is famous for energy-saving and environmental protection ,login www.ledclan.com to learn more features and uses of the LED tube light and surf www.lead-lighting.com to know more awesome LED floodlights and other LED lighting.

Related Articles - Luminous Flux, LED flood light, Color Temperature, luminous intensity, Brightness, human eye, light source, tube light, candelas, radiant flux,

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