Solar LED Navigation Mark Light DWS503 with red lens and bird deterrent needle

4~5NM Solar LED Navigation Mark Light

The solar powered navigation mark light DWS503 has been specially designed as the solar beacon light for the 5 types of marks in the IALA Maritime Buoyage System, thanks to its solar self‑contained design, reliability and durability.

This solar LED marine beacon provides 16 flashing rhythms that comply with IALA, plus Morse code, SOS code and self‑defined codes for every color. The patterns are selected by a touch switch and 4 indicators, and can be extended to 256 IALA rhythms.

4~5 NM
Visibility
200 hrs
Min. Autonomy
ISO 9001:2015
QAS Certified

Need Help Choosing the Right DWS503 Configuration?

+1 (408) 610-8721 · ts@2wise.com.cn

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Where It's Used

Typical Applications

Solar marine lantern on a lateral mark buoy

Marks & Buoys

  • Lateral Marks
  • Cardinal Marks
  • Research buoys
  • Special Buoy
Technician servicing a solar-powered research buoy at sea

Waterways & Harbors

  • Channel and Canal markers
  • Harbor, Port and Marina entrances
  • Private aids to navigation
  • Public piers, Docks and Marine walkways
Marine lights on an offshore construction platform

Offshore & Industrial

  • Oil & Gas Platforms
  • Offshore Wind Farms
  • Boat and barge Terminals
  • Breakwaters and marine infrastructure
Row of small red safety hazard buoys

Safety Markers

  • Floating Hose Markers
  • Safe Water Buoys
  • Isolated Danger Marks
  • Small Safety Hazard Buoys
Visibility4~5 NM
Light Output360° · 16 IALA Rhythms
Flashing PatternsExtendable up to 256 IALA Rhythms
Average IntensityW:86 · R:80 · A:77 · G:83 cd
Light Color OptionRed, Green, Amber or White
Minimum Autonomy200 Hours
Latitude Range55°S to 55°N
On/Off Level60/100 Lux
Lifespan of LEDsUp to 100,000 hours
Solar PanelMono-crystalline · 2.7Wp · 20%
BatteryNi-MH, replaceable · 4.8Ah/4.8V
Lens MaterialAnti-UV Polycarbonate
Mounting Option4 Bolts · Magnetic or Flange Base
Weight / Waterproof1.1kg · IP67
Temperature Range−40°/+70°C
Quality AssuranceISO 9001:2015
Chinese PatentZL201430444455.3
Intensity Adjustment / GPSOptional

16 IALA Rhythms, 4~5 NM

16 flashing IALA patterns with 4–5 nautical mile visibility, extendable up to 256 rhythms, plus Morse, SOS and self‑defined codes.

Four Light Colors

Available in red, amber, white and green, with the flashing pattern selected by a touch switch and 4 indicators.

Dusk to Dawn, Automatic

Turns on at dusk and off at dawn automatically — no switches, no manual operation.

Solar Self‑Contained · IP67

Completely self‑contained and waterproof to IP67. Charges under nearly all weather conditions, with up to 200 hours of operating capacity from a full charge.

2.7Wp Panel · Replaceable Battery

Mono‑crystalline 2.7Wp solar panel and a replaceable 4.8Ah/4.8V Ni‑MH battery.

Anti‑UV Lens · ISO 9001:2015

The lens is anti‑UV polycarbonate produced by Bayer. Manufactured to ISO 9001:2015 QAS.

DWS503 structure and dimensions, with optional flange base accessory and mounting holes
Have a Question?

Frequently Asked Questions

How to choose the flashing pattern?

Use the selecting switch on the bottom of the light and the four indicators on its side, as shown below. For each color there is a list of 16 flashing patterns, which together include all of the IALA recommended codes — for example, IALA recommends only 9 codes for red or green. We can provide up to 256 codes, but the 16 standard codes are enough for most users.

Underside of the DWS503 showing the flashing pattern selection and power on/off switches
Pattern selection & power switch
The four flashing pattern indicator lights on the side of the DWS503
Pattern indicators
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