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.
Need Help Choosing the Right DWS503 Configuration?
+1 (408) 610-8721 · ts@2wise.com.cn
Typical Applications
Marks & Buoys
- Lateral Marks
- Cardinal Marks
- Research buoys
- Special Buoy
Waterways & Harbors
- Channel and Canal markers
- Harbor, Port and Marina entrances
- Private aids to navigation
- Public piers, Docks and Marine walkways
Offshore & Industrial
- Oil & Gas Platforms
- Offshore Wind Farms
- Boat and barge Terminals
- Breakwaters and marine infrastructure
Safety Markers
- Floating Hose Markers
- Safe Water Buoys
- Isolated Danger Marks
- Small Safety Hazard Buoys
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.
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.


