Engineered to withstand harsh marine environments including salt spray, high humidity, and constant vibration, the TH5-1BR features an IP56 ingress protection rating, ensuring stable operation in temperatures ranging from -30°C to +50°C. The quick-release front cover simplifies routine maintenance, while multi-voltage compatibility (DC24V / AC110V / AC220V) allows seamless integration with most commercial vessels, fishing boats, offshore platforms, and work barges.
Product Description
The marine port side light th5-1br red navigation light is engineered for use on the port side of commercial and service vessels requiring compliance with international maritime navigation standards. Designed for shipyards, vessel operators, and marine equipment providers, this port side light facilitates clear identification of vessel positioning under COLREG 72. Its application extends primarily to cargo ships, fishing boats, offshore platforms, and tugboats that must maintain precise navigational signaling to ensure collision avoidance and regulatory conformity. Through distribution channels maintained by an experienced ship navigation light distributor, this product is targeted at professional users responsible for vessel safety instrumentation and regulatory certification adherence.
This th5-1br red navigation light is constructed with a high-strength die-cast aluminum housing rated IP56 for dust-tight and splash-proof performance, ensuring operational reliability in challenging marine environments. The inclusion of a high-transmittance Fresnel lens offers a sharp 112.5° horizontal sector red light visible from 3 nautical miles, complying with CCS Type Approval and IMO COLREG 72 standards. Versatility is supported by multiple voltage inputs (DC24V, AC110V, AC220V), facilitating integration into varying marine electrical systems. The design also incorporates vibration resistance and a quick-release cover to expedite maintenance without compromising protective integrity. This combination of features guarantees consistent signal visibility and extends service intervals, meeting the rigorous demands of marine navigation equipment.
As distributed by the ship navigation light distributor network, this marine port side light finds deployment across a broad spectrum of maritime operations including commercial cargo transit, fishing fleet navigation, offshore platform designation, and tugboat maneuvering. Its robust compliance with international safety regulations ensures vessels remain clearly definable in limited visibility and congested waterways, directly contributing to operational safety and efficiency. The product’s compatibility with retrofit and new build vessels supports fleet modernization efforts and regulatory inspections, reducing downtime during drydock maintenance cycles. By facilitating reliable maritime positioning signals, the th5-1br red navigation light enhances situational awareness and supports collision prevention protocols essential to safe navigation.
Item Details
Model：TH5-1BR
Product Type：Marine Port-Side All Round Navigation Light
Light Color：Red
Horizontal Sector Angle：112.5° (from dead ahead to 22.5° abaft the beam on the port side)
Visible Range：≥ 3 Nautical Miles
Rated Voltage：DC24V / AC110V / AC220V (Optional)
Light Source：Incandescent bulb (standard) / LED (upgrade available)
Protection Class：IP56 (Dust-tight & splash-proof)
Housing Material：High-strength die-cast aluminum alloy, anti-corrosion coated
Lens Material：High-transmittance polycarbonate / tempered glass with Fresnel optical design
Operating Temperature：-30°C ~ +50°C
Certifications：CCS (China Classification Society) Type Approval, Compliant with IMO COLREG 72
Mounting Type：Wall-mounted / bulkhead-mounted with standard flange
Working Principle
The TH5-1BR operates through three core functional systems to deliver compliant and reliable navigation signals:
1.Optical Signal System
Sector Control: Built-in light baffles limit the horizontal light emission to a 112.5° sector, ensuring the red signal is only visible to vessels approaching from the required port-side direction. This prevents light scattering and misinterpretation by other ships.
Long-Range Visibility: The Fresnel lens design focuses light from the source into parallel beams, maximizing luminous efficiency and achieving a 3-nautical-mile visible range while minimizing light loss.
2. Electrical Control System
Power Supply Compatibility: The lamp supports multiple marine-grade voltages (DC24V / AC110V / AC220V), connecting directly to the vessel’s main or emergency power distribution system.
Fault Monitoring: When integrated with the ship’s navigation light control panel, the lamp is monitored for current flow. A broken bulb or circuit failure triggers an audible/visual alarm to alert the crew immediately, ensuring navigation safety.
3. Environmental Protection System
Sealed Structure: The IP56-rated housing, combined with rubber gaskets and a quick-lock front cover, prevents water, dust, and salt spray from entering the internal components.
Anti-Corrosion & Vibration Resistance: The die-cast aluminum housing is coated with anti-corrosion paint, and internal components are shock-absorbed to withstand constant engine vibration and wave impact on board.
Application Scenarios
The TH5-1BR All Round Light is a mandatory safety device for vessels operating under international maritime regulations, suitable for the following scenarios:
1.Commercial Vessel Navigation
Ocean-Going Ships: Cargo ships, container vessels, bulk carriers, and oil tankers over 50 meters in length require this lamp as part of their standard navigation light suite, complying with COLREG 72 requirements for port-side identification.
Coastal & Inland Waterway Vessels: Fishing boats, tugboats, and work vessels operating in ports or narrow channels use the red signal to indicate port-side orientation, preventing collisions in high-traffic areas.
2. Offshore & Specialized Operations
Offshore Platforms & Barges: Fixed offshore installations and floating work barges use the TH5-1BR to mark port-side boundaries for approaching service vessels.
Night & Foggy Navigation: The high-visibility red signal is critical for navigation in low-light conditions, heavy fog, or poor visibility, ensuring other vessels can identify the ship’s position and direction.
3. Marine Safety & Compliance
Ship Inspection & Certification: Vessels must have certified navigation lights like the TH5-1BR to pass CCS, SOLAS, and port state control inspections, avoiding delays or fines.
Retrofit & Replacement: The lamp’s standard mounting and voltage options make it an ideal replacement for aging navigation lights on existing vessels, reducing maintenance costs and ensuring continued compliance.
Port Side Identification on Commercial Cargo Vessels
In the context of commercial cargo shipping, the marine port side light plays an essential role by enabling clear identification of vessel orientation in accordance with COLREG 72. Mounted on the port side of container and bulk cargo ships, the th5-1br red navigation light ensures continuous compliance with international maritime navigation law. Its IP56 rating and robust construction allow uninterrupted performance in adverse weather and ocean conditions commonly faced on commercial routes. Integrated within the vessel’s navigational lighting system, this product supports automated monitoring setups and eases vessel inspections by maritime authorities. Delivered via specialized ship navigation light distributor networks, it helps maintain safe transit and collision avoidance during dense port entries and congested sea lanes.
Navigational Safety Equipment for Offshore Platforms and Fishing Vessels
In offshore and inland waterway environments, the marine port side light is deployed on service barges, offshore platforms, and fishing vessels where port-side boundary delineation is critical for operational safety. The product’s technical compliance assures regulatory inspection satisfaction while providing clear visual reference points under difficult visibility, including fog and nighttime operation. Its adaptability to multiple voltage types facilitates easy integration with existing platform lighting or vessel electrical systems. The th5-1br red navigation light supports coordinated maritime workflows by improving situational awareness for diverse vessel operators, promoting efficient traffic management in restricted or sensitive marine zones regulated by both international and local maritime authorities.
Key Advantages
✅ Regulatory Compliance: CCS-approved and COLREG 72-compliant, meeting all international maritime safety
standards.
✅ Durable Marine Build: IP56 protection, anti-corrosion housing, and vibration resistance for long-term use in
harsh environments.
✅ Easy Maintenance: Quick-release front cover allows fast bulb replacement without removing the entire unit.
✅ Multi-Voltage Compatibility: Supports common marine power systems for flexible installation on various
vessel types.
✅ High Visibility: 3NM visible range and precision optical design ensure clear, unambiguous signals day and
night.
Design and Integration Strengths of the marine port side light
The marine port side light leverages a structurally sound die-cast aluminum alloy housing coated for corrosion resistance, meeting IP56 ingress protection criteria fundamental for marine durability. Its modular architecture allows straightforward mounting on bulkheads or walls using standardized flange fittings, simplifying installation across vessel types. The quick-release front cover design optimizes maintenance by enabling rapid bulb replacement while preserving sealed integrity. This robust design specification supports broad voltage compatibility, enabling seamless integration into existing marine electrical frameworks. Supplied via an established ship navigation light distributor channel, the product structure is strategically developed to accommodate varying operational needs, extending flexibility and adaptability in maritime environments.
Performance Capabilities and Operational Value of the th5-1br red navigation light
The th5-1br red navigation light delivers a high-intensity, focused red signal visible beyond three nautical miles, allowing effective port-side identification even under fog or low-light conditions. Its vibration-resistant construction mitigates operational interruptions caused by marine vessel movement. Multiple voltage compatibility extends usability across diverse ship systems, while the optional LED upgrade offers enhanced longevity and energy efficiency. This combination of features results in reduced maintenance frequency, better power utilization, and sustained compliance with maritime safety regulations. End users benefit from improved reliability and simplified operational checks, transforming the light into a crucial component of a vessel’s navigational safety infrastructure.
