The
brightness of LumiFlux EL lamps
is adjustable based on the drive (voltage and frequency).
The performance charts below show the complex non-linear relationship
between the varying drive
and the initial performance characteristics
(brightness, power, current, efficiency) of LumiFlux EL lamps. These
charts demonstrate also that LumiFlux lamps have a high efficiency
even with excessive driving conditions.
Influence
of applied voltage:
Higher driving voltage results in higher brightness.
The rate of increase at low frequencies is small, and significant
at higher frequencies.
(Chart: Voltage
vs. Brightness)
Decreased voltage results in higher efficiency, lower current, reduced
power consumption and better brightness maintenance. Higher voltage
triggers inverse effects.
(Chart: Voltage
vs. Efficacy)
Voltage
vs. Brightness
|
Voltage
vs. Efficacy
|
Influence
of applied frequency:
Higher frequency results in higher brightness. (Chart: Frequency
vs. Brightness)
Decreased frequency, until 150 Hz, increases the efficiency on lower
voltage drive. On higher voltage drive (above 100V) the efficiency
is maintained through the range of frequencies. (Chart: Frequency
vs. Efficacy)
Decreased frequency results in lower power, current and improved
brightness maintenance. Higher frequency results in inverse effects.
(Charts: Frequency
vs. Power and Frequency
vs. Current)
Frequency
vs. Brightness
|
Frequency
vs. Efficacy
|
Frequency
vs. Power
|
Frequency
vs. Current
|
Influence
of efficiency:
High efficiency is important not only for energy saving, but also
because it greatly increases the operating life of the lamp. LumiFlux
lamps have high efficiency even with excessive driving conditions.
Influence
of current:
Due to their high capacitance LumiFlux lamps in general have higher
current. The capacitive current increase does not effect the power
consumption.
Driving
parameter selection:
For any required brightness for optimum lamp performance, lowest
power consumption, highest efficiency and longest service life,
there is a single combination of voltage and frequency values.
The
Performance Simulator can be used to determine optimum
drive combinations by allowing comparisons to be made under different
voltage/frequency conditions.
The performance simulator can also aid in the design of suitable
matching inverters.
