The M550 is a 1 - 3 NM range solar LED marine lantern. Intended for personal private aid-to-navigation (PAToN) and AToN applications, the M550 used leveraged custom optics, high-efficiency solar panels, and premium materials to deliver 15 x the brightness and 3 x the range of it's well proven and very successful M502 predecessor. Weighing just 0.37 kg and 56 mm high, M550 is also half the weight and size of the M502, making it the most efficient, small-format solar marine lantern on the market today. With flange-mount or pole mount options, the M550 installs quickly and easily to light private docks, ports, marinas, buoys, floats and more.

The M550 lantern is also an ideal and compliant solution for NZ marine farm hazard warning requirements, with over 2,000 currently in use in NZ and across the South Pacific. Why not see for yourself why the M550 is so popular.


  • Installs in minutes; automatic “out of box” activation
  • Operates on three high-temperature-rated NiMH AA batteries; replaceable, recyclable, shelf life up to two years
  • Up to 26 cd (IALA peak, white)
  • Up to 3 Nautical Miles visible range @ T=0.74
  • Vertical divergence 8° (FWHM)
  • Up to 40 user-adjustable flash patterns with ability to direct enter effective intensity. Automatic adjustment for Schmidt Clausen
  • Next generation, energy-saving Automatic Light Control; five-day data trending regulates intensities for optimal performance throughout the calendar year and longer battery life
  • Premium grade, UV resistant polycarbonate body and lens material
  • Waterproof design; IP 68 immersion
  • Ventilated battery compartment
  • Best-in-class high-efficiency solar cells embedded in polyurethane to maximize energy collection at all latitudes
  • Life expectancy 15 years; 3 year warranty
  • Made in the USA

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Solar Panel Best-in-class high-efficiency solar cells. 0.6 W panel
Battery Three high-temperature NiMH AA batteries rated for -40 to 185 ºF (-40 to 85 ºC)
Light Source High Flux Surface Mount LED
Maximum Peak Intensity 29 cd (White)
Vertical Divergence 8º (FWHM) 
Flash Patterns 40 flash patterns
Construction Premium grade UV resistant, polycarbonate body and lens. Waterproof battery compartment with GORE® vent.
Colours Red, Green, White, Yellow and Blue. As per IALA "Optimum" Recommendation E-200-1, December 2008.
Operating Temperature  -22 to 122 *F (-30 to 60 *C) ambient temperature. The M550 will function up to 190 *F (88 *C) internal and surface temperatures.
Storage Temperature  -40 to 176 *F (-40 to 80* C) Not including batteries.
Colour indicator Yes. Red, Green, White, Yellow and Blue.
Weight 0.8 lb (0.37 kg)
Wind Loading 140 knots (72 m/s)
Ice Loading 0.03 psi (22 kg/m2)
Automatic Light Control (ALC) ALC 2.0 will dynamically reduce brightness to unusually low amounts of sunlight to ensure continued operation. Optimized for improved performance throughout the calendar year.
Programming Programmable with optional compact infrared programmer
Ingress IP68 immersion, 24 hrs at 1m
MIL-STD-2020G immersion & damp heat cycling/
MIL-STD-810G rain & salt fog
Compliance USCG PATON 33CFR66 & CFR67 Class C
RoHS, WEEE, IEC 60945, FCC