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LabSpion user guide
The power factor (PF) which indicates the quality of power
consumption where 1.0 is the best normally achieved by a
pure resistive load such as a tungsten lamp and where 0.0
is the worst. The power factor (PF) value should be
between 1.0 - 0.5 to be within a satisfactory level. Please
refer to quality charter standards for different countries and
regions to acquirer power factor limits.
5. The efficiency in lumens per watt is calculated by dividing
lumens with power consumption. The result is display in the
efficiency bar where 100 lumen/watt
it displayed as most green. The
scientifically maximum value of 100% efficacy is 683
lumen/watt.
6. The CRI is calculated using 8 reflectance standard colors
to calculate the ability of the light to
reflect colors thus indicating the
quality of the light radiated. 0 being
the worst quality and 100 being the best quality equal to
that of the sun.
The CRI can only be used for white light, if CRI is not
displayed is indicating that the radiated light does not meet
the criteria for white light or that light levels are too low to be
measured.
7. The color temperature indicates the color of white light
and is displayed in kelvin. Where 6000K is observed as cold
and 2500K as warm. The kelvin
scale is derived from the temperature
of the tungsten filament thus explaining that high
temperature of the filament results in cold light and vice
versa. If color temperature is not displayed is indicating that
