DM860 3–5 NM Solar Marine Lantern

The DM860 is a compact self-contained solar marine lantern designed for reliable 3–5 NM visual navigation marking in marine AtoN applications.

It combines the lantern, solar panels, battery and control system in one compact unit, helping simplify installation and reduce the need for separate external power equipment. With four marine-grade mono solar panels, a 12.8 V / 20 Ah LiFePO₄ battery and an IP68 enclosure, the DM860 is designed for dependable operation in offshore and coastal environments.

Built-in Bluetooth, RS232 and keypad configuration provide flexible options for setup and maintenance, while GPS synchronization supports coordinated flashing between multiple lanterns.

3–5 NM · Solar Powered · IP68 · Bluetooth · GPS Sync · Up to 25 Days

Reliable 3–5 NM Navigation Marking

The DM860 provides a nominal visible range of 3–5 NM at T=0.74, making it suitable for medium-range marine navigation marking.

A high-efficiency LED light source provides stable optical performance, while multiple available colours and 256 programmable IALA flash characteristics allow the lantern to be configured for different navigation marking requirements.

Key Features

• 3–5 NM nominal visible range
• High-efficiency LED light source
• 256 programmable IALA flash characteristics
• Red, green, white, yellow, blue and yellow-blue options
• Vertical divergence ≥8°
• LED lifespan ≥100,000 hours

Self-Contained Solar Power System

The DM860 integrates the light source, solar panels, battery and control components into a single self-contained unit.

Four 3.5 W marine-grade mono solar panels provide solar charging for the internal 12.8 V / 20 Ah LiFePO₄ battery, allowing the lantern to operate independently without an external power supply.

The compact integrated structure also helps simplify installation on navigation buoys and fixed marine AtoN structures.

Solar and Power Features

• 4 * 3.5 W marine-grade mono solar panels
• 12.8 V / 20 Ah LiFePO₄ battery
• Self-contained solar-powered operation
• Up to 25 days continuous operation
• Reduced requirement for external power equipment

Up to 25 Days Continuous Operation

The DM860 supports up to 25 days of continuous operation, providing additional operating reserve for marine installations where access for maintenance may be limited.

The LiFePO₄ battery is combined with the integrated solar charging system to support autonomous operation in marine environments.

Easy Configuration

The DM860 provides several configuration methods to support different installation and maintenance requirements.

Technicians can configure the lantern through Bluetooth, RS232 or the built-in keypad, allowing parameters to be adjusted locally according to project requirements.

Configuration Methods

• Bluetooth
• RS232
• Keypad

Bluetooth provides a convenient option for local setup and monitoring, while RS232 and keypad control provide additional configuration methods for field operation.

GPS Synchronization

Built-in GPS synchronization allows multiple DM860 lanterns to maintain synchronized flashing where coordinated navigation marking is required.

This is particularly useful for projects using multiple lanterns across the same channel, port area or marine AtoN installation.

256 IALA Programmable Flash Characteristics

The DM860 supports 256 IALA programmable light characteristics, allowing the flash pattern to be configured according to different navigation marking requirements.

Combined with multiple available light colours, this gives the lantern greater flexibility for different AtoN applications.

Designed for Marine Environments

The DM860 uses a marine-grade fiber-reinforced plastic base and an optical acrylic lens.

The enclosure is rated IP68, providing protection for continuous use in demanding marine environments.

The lantern is designed to operate across a temperature range of:

−35°C to +65°C

Structural Features

• IP68 waterproof rating
• Marine-grade fiber-reinforced plastic base
• Optical acrylic lens
• Operating temperature: −35°C to +65°C
• Compact self-contained construction
• Product weight: 5.3 kg

Why Choose DM860?

Reliable Optical Performance

A 3–5 NM nominal visible range, high-efficiency LED light source and multiple navigation colours support reliable visual marking for marine AtoN applications.

Independent Solar Operation

The integrated solar panels and LiFePO₄ battery allow the DM860 to operate without an external power supply.

Longer Operating Reserve

Up to 25 days of continuous operation provides additional operating capability for locations where regular maintenance access may be difficult.

Simple Installation

The self-contained structure reduces the need to install separate solar panels, batteries or external power components.

Flexible Local Setup

Bluetooth, RS232 and keypad configuration provide multiple options for commissioning and field maintenance.

Synchronized Flashing

Built-in GPS synchronization supports coordinated operation across multiple lanterns.

Suitable Applications

The DM860 is suitable for a range of marine navigation marking applications, including:

• Navigation buoys
• Port and harbour approaches
• Channels
• Waterways
• Fixed marine AtoN structures
• Offshore navigation marking
• Coastal navigation aids
• Marine areas requiring synchronized lantern operation

Typical Installation

The compact self-contained design makes the DM860 suitable for installation on both floating and fixed marine AtoN structures.

For buoy applications, the integrated solar power system helps reduce external cabling and separate power components.

For fixed installations, the lantern can provide reliable visual navigation marking with local configuration and GPS synchronization where required.

Product Configuration

The standard DM860 includes the core solar lantern functions required for visual navigation marking:

• 3–5 NM visual range
• High-efficiency LED
• Integrated solar charging
• LiFePO₄ battery
• Bluetooth configuration
• RS232 configuration
• Keypad configuration
• GPS synchronization
• 256 IALA programmable light characteristics
• IP68 enclosure

For projects requiring additional communication functions, the DM860 Series is also available with GSM, AIS AtoN or satellite communication options.

Frequently Asked Questions

What is the nominal visible range of the DM860?

The DM860 provides a nominal visible range of 3–5 NM at T=0.74.

What light colours are available?

Available colours include red, green, white, yellow, blue and yellow-blue.

How many flash characteristics does the DM860 support?

The DM860 supports 256 IALA programmable flash characteristics.