Overview
ISO 19009:2015 - "Small craft - Electric navigation lights - Performance of LED lights" specifies performance, construction and testing requirements for permanently fixed LED navigation light assemblies for small craft up to 24 m hull length. The standard provides uniform criteria to ensure LED navigation lights meet photometric, colorimetric and environmental performance needed for safe marine navigation and regulatory compliance.
Key topics and technical requirements
- Scope: Applies to permanently fixed LED navigation lights for small craft (≤ 24 m).
- Photometric requirements:
- Defines laboratory (rated-voltage) luminous intensity and an operational (in‑service) luminous intensity that accounts for ageing, contamination and supply voltage drop.
- The standard assumes an operational reduction (service factor) relative to laboratory measurements (document specifies a 20% allowance).
- Links luminous intensity to range of visibility; marking of range must match measured values.
- Luminous intensity distribution:
- Horizontal distribution must conform to COLREGs; uniformity criteria require maximum/minimum photometric intensity not to differ by more than a factor of 1.5.
- "Almost zero" or practical cut‑off is defined as ≤ 12.5% of the average photometric luminous intensity.
- Colorimetric requirements:
- Chromaticity coordinates must fall within ranges that satisfy COLREGs and related navigation rules.
- Flashing lights:
- A flashing light is defined as flashing at 120 flashes or more per minute.
- Measurement and verification procedures for flashing signals are specified.
- Environmental and mechanical requirements:
- Tests and criteria cover vibration, shock, rain and spray, solar radiation, salt‑mist corrosion, dry/damp heat, housing temperature, and electromagnetic compatibility (EMC).
- Includes provisions for compass safe distance and reflector performance.
- Testing and documentation:
- Detailed photometric and colorimetric tests, temperature influence measurements, and additional tests either referencing or supplementing IEC 60945:2002.
- Requirements for test order, test voltages, light-source specification, and required documentation and marking.
Practical applications and users
ISO 19009:2015 is used by:
- Manufacturers of LED navigation lights (design, production, conformity testing).
- Boat builders and riggers specifying compliant lights for small craft.
- Test laboratories and certification bodies performing photometric, colorimetric and environmental testing.
- Naval architects, marine equipment suppliers and regulators verifying compliance with COLREGs and national safety regulations.
- Marinas and installers selecting suitable lights for retrofit or new installations.
Practical benefits include consistent performance expectations, clearer compliance paths, reduced trade barriers, and improved safety through verified visibility, color and durability of LED navigation lights.
Related standards
- IEC 60945:2002 - Maritime navigation and radiocommunication equipment - general requirements and tests (used and supplemented by ISO 19009)
- ISO 11664 / CIE colorimetry references used for chromaticity and photometric measurements
- COLREGs - International Regulations for Preventing Collisions at Sea
Keywords: ISO 19009:2015, LED navigation lights, small craft, luminous intensity, range of visibility, photometric tests, colorimetry, COLREGs, IEC 60945, marine navigation lights testing.