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Lighting Terminology
COLOUR RENDERING
Another key performance characteristic, colour rendering is the ability of light source to represent colours in objects.  The relative measurement of this ability is Colour Rendering Index or CRI which rates light sources on a scale of 0 – 100. 
The higher the CRI the more vibrant or closer to natural the colours of objects appear.  Examples of CRI 0 (zero) would come from a source that provides light without colour much like a black and white television.  

A CRI of 100 would represent a source that has the rendering index capabilities of incandescent light bulb.

Light from lamps with good (70-80 CRI) and excellent (80 + CRI) colour rendering properties is said to be “high quality light” because objects and people look more appealing and the light level itself is perceived to be higher.

Good colour rendering is critical in setting where it is important that people appear natural, in retail applications where merchandise must look appealing, and in restaurants where food must look appetizing. 

In office and factory applications, high colour rendering can increase visual clarity and create a more pleasing and productive work environment.

LUXLITE compact fluorescent lamps have a brilliant CRI of 82 + assures pleasant and appealing atmosphere in various applications.
Luminous Flux: Total output of a light source is luminous flux, which is measured in Lumen (lm).
Luminous Efficiency: The ratio of supplied energy, which converted to light, is luminous efficiency.  Measurement standard of Luminous Efficiency is lumen per watt (lm/W).

POWER FACTOR

High Power factor lamp creates less system pollution.  If system has less pollution more resources will be saved from the purpose to create energy.  The higher the power factor the better the lamp performance.  LUXLITE high power factor (HPF) energy saving lamp is designed for commercial use where the electric power supply utility company requests high power compensation.

Power Factor (PF) is defined by the phase difference of Voltage (V) and Current (I) waveforms – cos ̃.  P (Energy) = VI cos̃ (W).  Hence, the higher the power factor is maintained, the less the VI is wasted in the form of reactive power, meaning the higher consumption efficiency of the power supplied is achieved.  In other words, less power generation is needed by the power station, and less resources on the earth is consumed.  Use LUXLITE save the earth!!

 

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