3-5NM Solar Marine Lantern (SL-C310 Series)

Solar Marine Lantern Type SL-C310 Series
Solar Marine Lantern Type SL-C310 Series

The SL-C310 series are robust, completely self-contained 3-5NM+ Solar LED Lantern marine lanterns. They are designed to be maintenance-free, installed in minutes, and have a service life of over 12 years.

These lanterns are available in three chassis size configurations; compact, standard and extended. They accommodate larger battery capacity and additional solar charging capability. Satellite connectivity is available as an option.

The four (4) premium-grade solar modules are integrated into the assembly, and mounted to collect sunlight at all angles.  The base and top of the lanterns are made from composite moulded polymer with UV-stabilised rubber corners and gaskets. This provides a superior IP68 water ingress rating – the best in the industry. A handle is incorporated into the chassis for safe lifting.

The tough, polycarbonate lens is specifically designed for use with LEDs. It also incorporates an environmentally-friendly spike to deter unwelcome bird life.

The SL-C310 series is available with GPS Synchronisation as standard. Two (2) or more lights can be synchronised to flash in unison via an internal GPS module.

The SL-C310 series may also be fitted with Satellite Communications Module or GSM Module – enabling users to access real-time diagnostic data and two-way monitoring and control through the Star2M® portal.

The 3 & 4 hole bolt pattern base fits directly onto existing 200mm bolt pattern industry standard mounts for ease of installation.

Product Code: SL-C310


  • Satellite Connectivity
  • GPS synchronisation
  • LED technology
  • High efficiency
  • Low maintenance
  • IR programmable
  • 310 user-adjustable IALA flash characters
  • Commercially available 12Ah SLA battery
  • Completely sealed & self-contained
  • Detachable bird spike


  • Satellite Connectivity
  • IR programmer
  • External ON/OFF switch
  • External battery charging port
  • GPS synchronisation: enable/disable
  • 7-degree lens
  • 50mm post mount adaptor plate


  • CE: EN61000-6-2 :2005, IEC61000-4-2:2008, IEC61000-4-3:2010, IEC61000-6-1:2016
  • IALA : Signal colours compliant to IALA E-200-1
  • Quality Assurance: ISO 9001:2015
  • Waterproof : IP68

    3-5NM Solar Marine Lantern (SL-C310 Series)
    3-5NM Solar Marine Lantern (SL-C310 Series)

Intensity Range

The SL-C310 lantern range utilise leading technology LEDs for a visible range of 3-5NM+.

Enhanced Optics

The optics and lens design ensures that vessel operators can clearly see the light from above when passing the AtoN.

Solar Efficiency

Designed with next generation solar technology including individual active MPPT (maximum power point tracking), maximising the power extracted from the solar panels for improved performance and efficiency.

Satellite Communications

The SL-C310 range is available with an optional integrated Iridium® Satellite module enabling two-way monitoring and control using the Iridium® Low Earth Orbit satellite network.

Accessible via the Star2M® portal, the global Iridium® network offers genuine, pole-topole coverage and is the perfect communication partner for Sealite and our aids to navigation solutions.

Available in three chassis sizes to accommodate larger battery capacity and additional solar charging capability. The SL-C310 range provides an innovative and reliable solution for the 3-5NM+ range.

Technical Specification

SL-C310 Compact Standard Extended
Light Characteristics
Light Source LED
Available Colours Red, Green, White, Yellow, Blue
Typical Maximum Intensity Red – 121, Green – 88, White – 156, Yellow – 95
Visible Range (NM) AT @ 0.74: 3–5
Horizontal Output (degrees) 360
Vertical Divergence (degrees) >7
Available Flash Characteristics Up to 310 IALA recommended (user adjustable)
Intensity Adjustments Multiple intensity settings
LED Life Expectancy (hours) LED Life Expectancy (hours)
Electrical Characteristics
Current Draw (mA) Refer to Sealite Solar Calculator
Circuit Protection Integrated
Nominal Voltage (V) 12
Autonomy (nights) >60 (14 hour darkness, 12.5% duty cycle) >60 (14 hour darkness, 12.5% duty cycle)
Solar Characteristics
Solar Module Type Monocrystalline
Output (watts) 20 (4 x 5watt) 28 (4 x 7watt) 33.6 (4 x 8.4watt)
Charging Regulation MPPT
Power Supply
Battery Type SLA (Sealed Lead Acid)
Battery Capacity (Ah) 12 24
Physical Characteristics
Body Material Aluminium chassis with UV-stabilised rubber corners & gaskets. Polymer composite-moulded top and base
Lens material LEXAN® Polycarbonate – UV stabilised
Lens Diameter (mm/inches) 99 / 3 7/8
Lens Design Single LED Optic
Mounting 3 and 4 hole 200mm bolt pattern
Height – Base Model (mm/inches) 484 / 19 1/16 581 / 22 7/8 640 / 25 13/64
Height – SATCOM Model (mm/inches) 504 / 19 27/32 601 / 23 21/32 660 / 25 63/64
Width (mm/inches) 234 / 9 1/4 234 / 9 1/4 234 / 9 1/4
Mass (kg/lbs) 9.1 / 20 13.9 / 30 1⁄2 14.6 / 32 1⁄4
Service Life 15 years
Environmental Standards
Shock MIL-STD-202G Test Condition H, Method 213B 30G vertical and 35G horizontal shock
Vibration MIL-STD-202G, Test Condition B, Method 204D 5G in all axes
Ice Loading Rated to withstand 22kg/m2
Salt Fog MIL-STD-810F Method 509.4
Rain Test MIL-STD-810F Method 506.4 procedure 1
Wind Exposure Rated to withstand 140 knots
Humidity MIL-STD-810F method 507.4 (0 – 100%, condensing)
Temperature Range -30 to 50°C
CE EN61000-6-2:2005, IEC61000-4-2:2008, IEC61000-4-3:2010, IEC61000-6-1:2016
IALA Signal colors compliant to IALAE-200-1
Quality Assurance ISO 9001:2015
Ingress Protection IP68
Intellectual Property
Trademarks SEALITE® is a registered trademark of Sealite Pty Ltd
Warranty * 3 years
Options Available

• 50mm pole mount adapterplate

• Satellite Communications

• GSM Cell-Phone Monitoring

• External Battery Charging Port

• External ON/OFF Switch

How to Order SL-C310 Series

3-5NM Solar Marine Lantern (SL-C310 Series)
3-5NM Solar Marine Lantern (SL-C310 Series)

Technical Illustrations

SL-C310 Base Model Technical Illustrations
SL-C310 Base Model Technical Illustrations
SL-C310 with Satellite Module Technical Illustrations
SL-C310 with Satellite Module Technical Illustrations

Related article : 1–2NM+ Solar Marine Lantern


  1. […] The SL-15 can be installed in minutes and requires no operator intervention. The SL-15 has a rotary switch to allow users to change the flash character of the light without the need for special tools or programmers. During daylight hours the solar module will charge the battery, and the lantern will automatically begin operation at dusk – once the ambient light threshold drops sufficiently. […]

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