SL-300-1D5 Series
13-21NM Marine Lanterns
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Thermal Management
The lanterns incorporate a dynamic intensity module as part of the thermal management system that
ensures it operates within the thermal design window. In practice the thermal management system
limits the lanterns average power consumption by automatically adjusting the intensity to prevent
overheating.
The Thermal Management system does so by multiplying the flash character duty cycle with the
lantern intensity and compares this figure to the Thermal Limit. If the figure (called the “multiplier”)
is greater than the Thermal Limit the intensity is then adjusted to ensure the Thermal Limit is not
exceeded.
This Thermal Limit will come into effect if you select a flash characteristic with a heavy duty cycle and
set a very high intensity. Under these conditions the lantern will automatically reduce its intensity so
that it is operating within the thermal design window. Note, this intensity limit will not be reached for the
vast majority of applications.
The Thermal Limit for the SL-300 Series lanterns has been set to 37.5%.
The relationship between the Thermal Limit, Intensity and Flash Duty Cycle is illustrated in the
following graph:
