Frequently Asked Questions – Solar Warning Lights & Obstruction Lights

How Can We Help You?

Advantages

•The on/off switch is on bottom
•Steady and flashing selection button (one working mode in a light is available)
•Programmable with optional IR remote

•Mono type, high-efficiency solar panel.
•Maximum Power Point Tracking (MPPT)
•Advanced Energy Management System (EMS)
•Reliable lithium battery ensures the transport safety and operation durability

•Self-contained, Compact, stand-alone, maintenance-free unit
•Industrial-grade PC and aluminum base extends the super long lifespan.
•Top class LEDs, battery, circuit board bring super quality
•Cable-free mounting saves you space and cost.
•IP68 waterproof level applicable for any using circumstances all over the world
•Tens of thousands of installations worldwide

Where can (solar marine lanterns)
be used?

The solar powered marine lanterns meeting IALA requirements for marine use, is being applied to the ships, buoys, docks, aquaculture, marine construction machinery, offshore wind turbines etc. for warning purpose.

This is the primary and most critical use, often mandated by maritime authorities.

Channel Marking: On buoys and beacons to define the port (left) and starboard (right) sides of a navigable channel.

Fairway and Mid-Channel Markers: To mark the center of a wide channel or a safe passage.

Isolated Danger Marks: Placed on buoys directly over a hazard (like a wreck or rock) to warn vessels to steer clear.

Safe Water Marks: Indicating safe, navigable water all around, often used for landfall or mid-sea markers.

Special Marks: To indicate a special area or feature such as a spoil ground, military exercise zone, or a cable line.

Used to enhance safety and manage traffic within busy waterfront areas.

Dock & Pier Lighting: Illuminating the edges of docks, piers, and jetties for safe pedestrian and vehicle access at night.

Breakwater and Jetty Heads: Marking the ends of protective structures to prevent vessels from colliding with them.

Mooring Buoys: Lighting buoys where vessels can tie up, making them easy to locate after dark.

Marina Entrances and Fairways: Guiding boats safely into and within a marina complex.

Crucial for marking permanent or temporary structures and operations.

Aquaculture & Fish Farms: Marking the perimeters of fish pens, oyster beds, and other aquaculture installations to prevent collisions by passing vessels.

Oil & Gas Platforms: Marking the corners and hazards of offshore platforms, rigs, and Floating Production Storage and Offloading (FPSO) units.

Wind Farms: Marking the boundaries of offshore wind farm territories and individual turbines to create a safe exclusion zone for shipping.

Dredging Operations: Lighting dredgers, pipelines, and associated buoys to warn other vessels of the ongoing work.

Ideal for individual boaters and waterfront property owners.

Small Craft Navigation: As independent, wireless navigation lights (port, starboard, stern) for sailboats, dinghies, tenders, and kayaks.

Private Docks and Boat Lifts: Providing safety lighting and marking the structure at night.

Mooring and Anchor Buoys: Helping owners locate their own mooring or a specific anchorage spot in the dark.

Underwater Obstruction Marking: (e.g., a rock, a sunken log) near a private shoreline to protect both the obstruction and passing boats.

Their portability and quick deployment make them perfect for dynamic situations.

Search and Rescue (SAR) Operations: Marking search patterns, debris fields, or the location of a found object or person.

Temporary Hazards: Marking a new wreck, a washed-up container, or a other sudden navigational danger until a permanent solution is established.

Hydrographic & Environmental Surveys: Delineating the area being surveyed to keep other vessels clear.

Construction Projects: Marking the extent of underwater construction sites, such as for bridge pylons or pipeline crossings.

Not limited to saltwater environments.

Lakes and Rivers: Marking channels, hazards, and no-wake zones on inland waterways.

Canals: Lighting the edges of commercial and recreational canals.

Reservoirs and Dams: Marking intakes, dam faces, and other hazards for recreational boaters.

Who might use this product?

The ships, buoys, docks, aquaculture, marine construction machinery, offshore wind turbines etc. for warning purpose.

Coast Guards & Maritime Safety Agencies: For maintaining and marking official Aids to Navigation (AtoN) like buoys, beacons, and channel markers. They use these lanterns to define safe waterways, mark hazards, and ensure compliance with international regulations (IALA).

Port and Harbor Authorities: To manage vessel traffic within port limits, mark breakwaters, dock edges, and dredging areas, enhancing safety and operational efficiency.

Public Works Departments: For marking bridges, culverts, and other water-related infrastructure.

Aquaculture and Fish Farms: To mark the boundaries of fish pens, nets, and farm perimeters, preventing damage from other vessels and ensuring the safety of their assets.

Commercial Shipping and Barges: As temporary markers on barges, dredgers, or other working vessels that may be stationary or pose a navigation hazard.

Offshore Energy Companies: (Oil Rigs, Wind Farms) To mark the boundaries of exclusion zones, underwater structures, and navigational hazards around their installations.

Marina and Dock Operators: For lighting piers, docks, and jetties to ensure customer safety, security, and to define fairways and slips at night.

Surveying Companies: To temporarily mark survey areas, underwater pipelines, or cables during mapping and inspection projects.

Salvage and Diving Companies: To mark the location of a salvage operation or a dive site, warning other vessels to keep a safe distance.

Civil Engineering and Construction Firms: For marking areas of underwater construction, such as pilings for new bridges or pipelines.

Private Boat Owners: As navigation lights for small sailboats, dinghies, tenders, or kayaks that may not have a wired electrical system. Also used as an emergency backup light.

Owners of Waterfront Property: To mark private docks, boat lifts, mooring buoys, or underwater obstructions (like rocks) near their shore for safety and to guide their own boat.

Yacht Clubs and Sailing Associations: To mark racing courses, temporary hazards, or club mooring fields.

Fishermen (Commercial and Recreational): To mark lobster pots, crab traps, or long fishing lines, making them visible and recoverable.

How to Use / Usage

Before first use, expose the lantern to direct, unfiltered sunlight for at least 24-48 hours. This fully charges the internal battery, ensuring optimal performance from the start.

Mount the lantern securely on its intended structure (e.g., a buoy, pole, piling, or boat). Ensure it is firmly attached to withstand waves and weather.

Most modern solar lanterns are automatic:

Turn the Switch On: Many have a simple On/Off/Auto switch. Set it to “AUTO“.

Automatic Operation: In “AUTO” mode, the built-in light sensor will automatically turn the LED light on at dusk and off at dawn. No further action is needed.

Applications

Solar marine lanterns are incredibly versatile and are used for:

Marking channels, fairways, and hazards on buoys and beacons.

Providing illumination for safety and security around marinas and private docks.

Serving as an independent, solar-powered navigation light for sailboats, dinghies, and fishing boats.

Marking the boundaries of nets and farm areas.

A reliable light source during power outages or for emergency situations on the water.

Cautions for Use

To ensure longevity and safety, please observe these cautions:

The solar panel must receive direct sunlight to charge effectively. Avoid installing it in permanently shaded areas.

The battery has a finite lifespan (typically 2-5 years). Performance will decline over time, especially in cold weather.

Regularly wipe the solar panel and lens clean of salt, dirt, bird droppings, and grime. A dirty panel drastically reduces charging efficiency.

Ensure the lantern’s seals are intact and the unit is properly closed to maintain its IP (Ingress Protection) rating against water and salt spray.

Avoid impacts that could crack the solar panel or the lamp’s body.

Dispose of the internal battery according to local regulations for rechargeable batteries.

Technical Specifications

– High powered LEDs ensuring consistent photometrics for life of product with more than 4NM visual range
– Meets the requirements of IALA standards
– The American brand LED beads reaches more than 100,000 hours in its working lifespan
– Chromaticity: Red, Green, White, Yellow and blue
– Steady-on and flashing pattern and flashing frequency can be customized

– 2.5W 8V mono type class A high-efficiency solar cells with more than 20 years lifespan
– Maximum power point tracking (MPPT) for optimal energy management

– High quality replaceable lithium battery with 6.4V/6AH in capacity(can be expanded)
– 55℃～85℃ Temperature operating range
– Designed for 8 years battery life; Replaceable and recyclable

– Automatic on and off output
– Intensity: upto 150cds
– 30 autonomy days (10 hours per day) in flashing pattern

– Programmable with optional infrared programmer
– Remote control optional
– GPS Synchronization Optional GPS enables two or more lights to flash in same frequency

– Premium grade UV resistant, polycarbonate housing and lens
– Polycarbonate/aluminum base
– Environmental-friendly, durable electrical parts.
– Thermoplastic gaskets
– IP68 waterproof and self-contained battery, solar panels
– Bird deterrent included or can be removed before delivery

Technical Specifications

A typical solar marine lantern consists of the following core components:

Solar Panel: Usually located on the top, it converts sunlight into electricity.

Rechargeable Battery: Stores the solar energy. Common types are Ni-MH (Nickel-Metal Hydride) or LiFePO4 (Lithium Iron Phosphate) for their durability and wide temperature tolerance.

LED Lamp(s): The light source. LEDs are used for their low power consumption, long life, and high brightness.

Light Sensor / Photocell: Automatically detects ambient light levels to turn the light on at dusk and off at dawn.

Control Circuit Board: Manages the charging and discharging of the battery to prevent overcharging or deep discharge.

Housing / Body: A tough, durable, and UV-resistant body (often made from polycarbonate or ABS plastic) that protects the internal components from harsh marine environments.

Lens: A colored (red, green, amber) or clear lens that focuses the light and defines its characteristic for navigation.

Mounting Hardware: A base, bracket, or straps for securing the lantern to various structures.

1 x Solar Marine Lantern (the main unit)

1 x Set of Mounting Hardware (e.g., base bracket, U-bolts, screws, nuts)

Solar Marine Lantern - Instruction Manual & User Guide

Model: SML-3000 | IP Rating: IP67 | Warranty: 24 Month

Please read this manual carefully before installation and operation. Failure to follow these instructions may result in injury, product damage, or void the warranty.

Battery Safety: The internal battery is sealed. Do not attempt to open, short-circuit, or incinerate the lantern. Dispose of the entire unit at a designated battery disposal facility.

Installation Safety: Install the lantern in a location where it cannot fall into the water and become a hazard. Ensure the mounting structure is secure and stable.

Marine Environment: This product is designed for marine environments but should not be permanently submerged. Ensure all seals are intact and properly closed.

Cleaning: Only use fresh water and a soft cloth to clean the solar panel and lens. Do not use abrasive chemicals or solvents.

Please verify that you have received all the following items:

1 x Solar Marine Lantern

1 x Mounting Bracket (or U-Bolt Kit)

1 x Set of Stainless Steel Screws & Nuts

1 x User Manual (this document)

(1) Solar Panel

(2) LED Lens (Red, Green, or Clear)

(3) Housing Body

(4) Mounting Base / Bracket

(5) ON/OFF/AUTO Switch (typically located on the bottom)

(6) Charging Indicator LED (internal, may blink during charge)

Step 1: Initial Charging (CRITICAL)

Before first use, place the lantern in direct, unfiltered sunlight for a full 24-48 hours with the switch in the OFF position. This ensures the internal battery is fully charged for optimal performance.

Step 2: Choose a Mounting Location

Select a location with maximum exposure to direct sunlight throughout the day.

Ensure the location is clear of shadows from structures, masts, or other equipment.

Ensure the LED lens is facing the direction where visibility is required.

Step 3: Mount the Lantern

Attach the mounting bracket to your structure (e.g., pole, piling, buoy mast) using the provided stainless steel hardware. Ensure it is firmly secured.

Slide the base of the lantern onto the bracket and tighten the locking screw firmly.

Operating the lantern is simple and automatic.

Switch to AUTO Mode: After the initial charge, locate the switch on the bottom of the unit. Move the switch from OFF to AUTO.

Automatic Operation: In AUTO mode, the built-in photocell will automatically:

Turn the light ON at dusk.

Turn the light OFF at dawn.

Manual Override: The ON position forces the light to stay on continuously. This is useful for testing but will drain the battery if used for extended periods without sunlight.

To ensure long-term reliability, perform these simple maintenance checks:

Weekly: Visually inspect the lantern for any physical damage.

Monthly: Wipe the solar panel and LED lens clean with a soft, damp cloth to remove salt, dirt, and bird droppings. A clean panel is essential for efficient charging.

Annually: Check the tightness of all mounting hardware and inspect the housing seals for any signs of wear or damage.

Your Solar Marine Lantern is covered by a 24-month limited warranty from the date of purchase against defects in materials and workmanship.

What is covered: Repair or replacement of defective components.

What is not covered: Damage from misuse, improper installation, accidents, lack of maintenance, or normal wear and tear (including battery capacity degradation over time).

To make a warranty claim, please contact our customer service team with your proof of purchase.

Power Source: Monocrystalline Solar Panel

Battery: Sealed Rechargeable LiFePO4 / Ni-MH Battery

Light Source: High-Intensity LED

Light Modes: Auto Dusk to Dawn

Charging Time: 6-8 hours of sunlight for a full charge

Runtime: Up to 72 hours on a full charge (depending on model and conditions)

Housing Material: UV-Resistant Polycarbonate

Protection Rating: IP67 (Dust-tight and protected against temporary immersion)

Operating Temperature: -20°C to +60°C (-4°F to +140°F)

Trouble Shooting - Problem Possible Cause Solution

Light does not turn on at night. Switch is in the “OFF” position. Set switch to “AUTO”.

Battery is depleted. Ensure the solar panel is clean and receives direct sunlight for 2-3 days.

Extreme cold weather reducing battery performance. This is normal. Performance will restore in warmer conditions.

Light is dim. Dirty solar panel or lens. Clean the solar panel and lens thoroughly.

Battery is near end of its lifespan (after 2-3 years). Contact support for a battery replacement or a new unit.

Light flashes erratically or in a wrong pattern. Internal fault or incorrect mode setting. Perform a reset by covering the solar panel for 10 seconds and uncovering it. If problem persists, contact support.

Water inside the housing. Housing was not sealed properly or seal is damaged. IMMEDIATELY turn the unit off and contact customer support.

Problem

Possible Cause

Solution

Light does not turn on at night.

Switch is in the “OFF” position.

Set switch to “AUTO”.

 

Battery is depleted.

Ensure the solar panel is clean and receives direct sunlight for 2-3 days.

 

Extreme cold weather reducing battery performance.

This is normal. Performance will restore in warmer conditions.

Light is dim.

Dirty solar panel or lens.

Clean the solar panel and lens thoroughly.

 

Battery is near end of its lifespan (after 2-3 years).

Contact support for a battery replacement or a new unit.

Light flashes erratically or in a wrong pattern.

Internal fault or incorrect mode setting.

Perform a reset by covering the solar panel for 10 seconds and uncovering it. If problem persists, contact support.

Water inside the housing.

Housing was not sealed properly or seal is damaged.

IMMEDIATELY turn the unit 

Manufacturing Process

The process can be divided into four major stages:

1.  PCB & Electronics Assembly: The heart of the lantern.

2. Housing & Component Molding: The body and protective parts.

3. Final Assembly and Potting: Putting it all together and making it durable.

4. Quality Control & Testing: Ensuring reliability.

A streamlined flowchart of the process looks as follows:

This is the core of the lantern’s functionality.

PCB Fabrication: The printed circuit board (PCB) is manufactured. This involves etching the copper pathways onto the board substrate.

Solder Paste Application: A solder paste stencil is placed over the PCB, and paste is applied to the areas where components will sit.

Component Placement: Automated pick-and-place machines precisely position surface-mount components (resistors, capacitors, the microcontroller, LEDs) onto the PCB.

Reflow Soldering: The PCB passes through a reflow oven. The oven heats the board in a controlled profile, melting the solder paste and permanently attaching the components.

Through-Hole Component Insertion: Larger components, like the battery connector or specific connectors, may be inserted manually or by machine and wave-soldered.

Firmware Programming: The microcontroller on the PCB is programmed with its firmware. This software controls the charging algorithm, light sensor logic, and flash sequences.

Initial Testing: The populated PCB is powered on for a basic functional test to verify that it charges, lights the LEDs, and responds to the light sensor.

Injection Molding:

Housing/Body: Pellets of durable, UV-stabilized plastic (like Polycarbonate or ABS) are heated and injected under high pressure into metal molds to form the top and bottom halves of the lantern body.

Lens: Polycarbonate or acrylic in the required color (clear, red, green) is injection-molded to create the durable, optically precise lens.

Solar Panel Lamination:

Photovoltaic cells are interconnected and sealed between a tempered glass top and a protective polymer back sheet using a lamination process. This protects the cells from moisture and physical damage.

This is the critical stage where the product is made weatherproof.

Sub-Assembly:

The solar panel is connected to the PCB.

The PCB is secured inside the lower housing.

The rechargeable battery (e.g., Ni-MH or LiFePO4) is connected.

The lens is fitted into the housing.

 

Potting (Crucial for Waterproofing):

The entire electronic assembly (PCB, battery, and connections) is often potted—meaning it is filled with a solid or gelatinous epoxy or polyurethane compound. This process:

Waterproofs: Completely seals the electronics from water and salt spray.

Protects from Vibration: Absorbs shocks and prevents components from breaking loose.

Thermal Management: Helps dissipate heat from the LEDs and PCB.

Sealing and Closing:

A high-quality rubber or silicone gasket is placed in the groove between the housing halves.

The top and bottom housings are clamped together and sealed with screws. The screw holes often have seals to prevent water ingress.

Every unit must pass a series of rigorous tests before shipment.

Final Functional Test: Each lantern is placed in a dark box to simulate night, verifying that it turns on automatically and emits the correct light color and pattern.

Environmental Chamber Testing (Batch Testing): A sample of lanterns from the production batch is placed in an environmental chamber where they are subjected to extreme temperature cycles, high humidity, and salt spray to simulate years of marine exposure in a short time.

Photometric Testing: Verification that the light intensity (in candela or luminous range) meets the required international standards for navigation (e.g., IALA, COLREGs).

IP Rating Testing: Units are tested to ensure they meet their stated Ingress Protection rating (e.g., IP67 or IP68), which involves being sprayed with high-pressure water and, for higher ratings, submerged in water.

Drop Test: Units are dropped from a specified height onto a hard surface to ensure the housing and solar panel can withstand minor impacts.

Our Service

We are dedicated to providing more than just a product; we provide a complete solution and a seamless customer experience. Our service commitment includes:

Pre-Sales Consultation: Expert advice to help you select the right solar marine lantern for your specific application (e.g., channel marking, dock lighting, aquaculture).

Technical Support: Lifelong technical assistance for product installation, operation, and troubleshooting.

Global Shipping: We reliably ship our products to customers worldwide, from large commercial orders to individual consumers.

Customer-Centric Approach: Your satisfaction is our priority. We are committed to resolving any inquiries or issues promptly and effectively.

Our Policy

We believe in transparency and reliability. Here are the policies that guide every order we handle.

1. Quality Assurance Policy

We do not manufacture, but we take full responsibility for what we deliver. Every shipment is pre-inspected by our QC team before leaving the factory. We provide test reports and photos upon request. If a product does not meet the agreed specifications, we replace it at no extra cost.

2. Shipping & Delivery Policy (DDP / DDU)

We offer flexible shipping solutions to simplify your logistics. With DDP (Delivered Duty Paid) , we handle all customs clearance and taxes – you receive your goods at your door with no hidden fees. With DDU (Delivered Duty Unpaid) , we manage transport and customs clearance, but duties are paid by you at import. Choose the option that best fits your business. We work with reliable freight forwarders to ensure on-time delivery.

3. After-Sales Support Policy

Your trust matters to us. We keep common spare parts in our own warehouse for urgent replacements. If any product is damaged during transit, we arrange a free replacement immediately. Our team responds to all inquiries within 24 hours – even after the sale is complete.

4. Payment Terms Policy

We accept flexible payment methods, including L/C at sight, T/T, and Western Union. For long-term partners, we offer negotiable credit terms. All payment details are handled securely and confidentially.

Unique Deliveries

We understand that standard solutions don’t fit every need. That’s why we offer specialized delivery options:

Bulk & OEM Orders: We provide customized pricing and logistics solutions for large-quantity orders and Original Equipment Manufacturer (OEM) requirements.

Customized Products: We can tailor products with specific flash patterns, light intensities (candelas), colors, or branding to meet unique project specifications.

Dropshipping: We offer reliable dropshipping services for resellers, with discreet packaging and timely fulfillment.

Technical Documentation: Upon request, we can provide detailed technical datasheets, IALA compliance certificates, and installation guides for professional and governmental projects.

Warranty Information

We stand behind the quality and durability of our solar marine lanterns.

Warranty Period: Our products are covered by a standard 24-month (2-year) limited warranty from the date of purchase.

What is Covered: This warranty covers defects in materials and workmanship under normal use. It includes the repair or replacement of defective components such as the LED module, solar panel, and internal circuitry.

 

What is Not Covered:

Damage caused by improper installation, misuse, abuse, or accidents.

Lack of maintenance (e.g., failure to clean the solar panel).

Normal wear and tear, including the gradual decrease in battery capacity over time.

Damage from acts of nature or exposure to conditions beyond product specifications.

How to Claim: In the event of a potential warranty claim, please contact our customer service team with your order number and a detailed description (and photos/video) of the issue. We will guide you through the troubleshooting and return process.

What payment method do we have?

We offer a variety of secure and convenient payment options to facilitate a smooth transaction:

Credit/Debit Cards: We accept all major cards, including Visa, MasterCard, American Express, and UnionPay. Our payment gateway is PCI-DSS compliant for your security.

PayPal: A fast, secure, and widely trusted way to pay using your PayPal balance, bank account, or credit card.

Bank Transfer (TT): Ideal for large orders, corporate purchases, and government contracts. Please contact us for our company bank details. Note that orders paid by bank transfer will be shipped after the funds have been cleared.

Online Banking: For certain regions, we support direct payments via popular online banking platforms.

Letter of Credit (L/C): Available for verified large-scale commercial and governmental orders, subject to agreement and specific terms.

Scroll to Top