13-21NM Long Range Marine Lantern (SL-300-1D5)


The SL-300-1D5 series are 13 to 21NM long range marine lanterns with 1.5 degree vertical distribution, suitable for a range of day and night applications.

High Intensity, Small Form Factor

The SL-300-1D5 series offers multiple intensity adjustments to over 90,000cd luminous intensity in a single tier (over 180,000cd in a 2-tier configuration). The small form factor provides minimal wind loading and convenient handling – delivering significant advantages over traditional larger lens stack assemblies.

High Efficiency

The long range lanterns produce a class-leading intensity to power ratio, making them highly efficient and suitable for solar power solutions.

Advanced PC or IR Programming

Sealite’s convenient PC Configuration Tool or IR programmer allows a host of features to be user set including;
• Multiple intensity settings
• 310 flash settings including custom character
• Automatic effective intensity adjustment
• Adjustable on/off lux levels
• Low battery threshold
• GPS synchronisation offset
• Alarm conditions

Optional GPS Synchronisation
For flash synchronisation of lanterns a GPS module may be fitted.

Optional GSM Monitoring & Control

The SL-300-1D5 series may be fitted with a GSM module for monitoring and control – enabling users to access real-time diagnostic data and change lantern settings via cell-phone.

The Sealite Advantage

  • Over 90,000cd luminous intensity white – single tier
  • Over 180,000cd luminous intensity white – two tier
  • Compact lantern up to 21NM visible range
  • PC or IR Programmer for setup, diagnostic & testing
  • Internal or external photocell options
  • User configurable day/night lux levels
  • Advanced remote monitoring features
  • Wide operating voltage range 21–58VDC
  • Internal data-logging for long term retention of key operational parameters & alarm conditions
  • General purpose inputs (two) & outputs (two).

Technical Specification

SL-300 Series1.5o Single Tier Model1.5o Two Tier Model
Light Characteristics
Light SourceHigh efficiency LEDs
Available ColoursWhite. Other colours   available on request.
Typical Maximum Intensity (cd)†White – 94,400White – 188,800
Visible Range (NM)AT @ 0.74: 13–19
AT @ 0.85: 19.2–29.5
AT @ 0.74: 19–21
AT @ 0.85: 29.6–33
Horizontal Output (degrees)360
Vertical Divergence (degrees)>1.5
Available Flash CharacteristicsUp to 310 including 256   IALA recommended, & 1 custom
Intensity AdjustmentsUser adjustable
LED Life Expectancy (hours)>100,000
Electrical Characteristics
Voltage Range (V)24-48V   DC
Nominal Voltage (V)24V   DC
Peak Power (W)384768
Average Power (W)132264
Physical Characteristics
Body MaterialMarine grade two part epoxy   coating to resist the elements
Lens MaterialUV-stabilised acrylic
Lens Diameter (mm/inches)373 / 14¾
Lens DesignMultiple LED optic
Mounting3 & 4 hole 200mm bolt   pattern
Height (mm/inches)302 / 12496 / 19½
Width (mm/inches)373 / 14¾373 / 14¾
Mass (kg/lbs)18.5 / 40¾38.5 / 85
Product Life ExpectancyUp to 12 years
Environmental Standards
ShockMIL-STD-202-213 Test   condition H
VibrationMIL-STD-202-204 Test   Condition B (5g)
Ice LoadingRated to withstand 22kg/m2
Temperature Range-40 to 60°C
Wind ExposureRated to withstand 140   knots
Humidity0 – 100%, condensing
Driving Rainat 45° from vertical
ImmunityEN 61000-6-1: 2007   (IEC61000-6-1: 2005).
EmissionEN 61000-6-4: 2007 (IEC   61000-6-4: 2006) + A1: 2001.
FCC Part 15 RulesIFCC Part 15 Subpart B.
IALASignal colours compliant to   IALA E-200-1
Quality AssuranceISO 9001:2015
Intellectual Property
TrademarksSEALITE® is a registered trademark of Sealite Pty Ltd
3-year warranty
Options Available
• GPS Synchronisation
• AIS Type 1 or Type   3
• GSM Monitoring   & Control System
• RS232/422/485   Port
• General purpose   inputs (2) & outputs (2)
• Variety of   solar/battery configurations
• Bird deterrent   spikes
• Serial programming   cable

Read more : Stand-Alone Marine Lantern Type SL-510-SA

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