SL-300-1D5 Series
13-21NM Marine Lanterns
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There are two status LED’s located on the master circuit board.
The RED status LED is used to indicate the health of the lantern’s power system, eg. battery voltage. The
YELLOW status LED is used to indicate the operational status of the lantern, eg. GPS synchronisation. These
indicator LEDs can be viewed through the side of the base of the lantern.
Yellow LED
Lantern Status
Lantern Comment
OFF
Normal
OFF
Lantern is in Daylight and in Dusk till Dawn mode or
in Standby Mode.
Flashing
ON 0.15 seconds
OFF 0.15 seconds
Normal
OFF
Light is activating and will turn on after detecting 30
seconds of continuous darkness.
Flashing
2 x Quick Flashes
every 2 seconds
Normal
ON
Lantern is in Normal operating condition. It is not
connected to any GPS synchronisation.
Flashing
ON 1.5 seconds
OFF 1.5 seconds
Normal
ON
Normal operating condition. Lantern is synchronised
to GPS-enabled lanterns.
Flashing
1 x Quick Flash
every 2 seconds
Normal
ON
Lantern is ‘re-syncing’ with GPS. The lantern
re-sync’s with the GPS every 15 minutes.
Flashing
2 x Quick Flashes
every 11 seconds
Normal
ON
Lantern is a Hard Wire Synchronisation Slave.
Red LED
Lantern Status
Lantern Comment
OFF
Normal
ON
Normal Battery Voltage
Flashing once
every 1.6 seconds
Battery Voltage is
24 - 25V or
48 - 50V
ON
Battery Voltage is between 24 - 25V
Battery Voltage is between 48 - 50V
Flashing twice
every 2 seconds
Battery Voltage is
23.5 - 24V or
47 - 48V
ON
Battery Voltage is between 23.5 - 24V
Battery Voltage is between 47 - 48V
Flashing 3 x times
every 2 seconds
Battery Voltage is
21 - 23.5V or
43 - 47V
ON
Battery Voltage is between 21 - 23.5V
Battery Voltage is between 43 - 47V
Flashing 4 x times
every 2.5 seconds
Battery Voltage is
less than 21 or 43V
ON
Battery Voltage is less than 21 or 43V
Fixed-on
Flat Battery
(<21V or 43V)
OFF
Flat Battery cut-off is now operational and the
lantern will be off. Battery must receive charge
(above 24 or 48V) and lantern must see daylight for
at least 1 minute before resuming normal operation.
Flashing
ON 1.5 seconds
OFF 1.5 seconds
Battery Voltage is
above 27 or 54V
ON
Battery Voltage is above 27 or 54V. This may
indicate a problem with the solar regulator.
LANTERN STATUS CHART