Functional lighting and general area lighting in a port are two fundamentally different lighting tasks. Area lighting provides basic orientation and safety for the site as a whole, while functional lighting focuses on specific work zones, machinery, or operations where precise visibility directly impacts safety and productivity. Confusing these two categories risks creating blind spots, glare, or operational failures. This article answers the most frequently asked questions about maritime lighting in port environments.
\nMore about the approach of JEL Products can be found on the page port lighting for ports and terminals.
\nWhat lighting tasks occur in a port?
A port is not a homogeneous environment,multiple lighting tasks are always active simultaneously, each with its own purpose and technical requirements. Area lighting illuminates routes, access roads, and open storage areas. Functional lighting focuses on specific workplaces such as loading and unloading positions, cranes, quays, and containers. Both types are necessary but should not be confused.
The most common lighting tasks on a haven terminal to be
- Area lighting: Orientation on roadways, parking lots, and open spaces
- Loading and unloading lighting: Targeted lighting for loading and unloading ships
- Crane lighting Specialized work lights on gantry cranes, reach stackers, and other lifting equipment
- Warehouse Lighting: lighting in warehouses, container stacks, and covered sheds
- Emergency lighting emergency lighting and exit signs for escape routes and hazardous areas
- Perimeter and security lighting: Bright, consistent lighting along fences and entrance gates
Each task has different requirements in terms of light intensity, light direction, and luminaire type. A lighting solution that combines all these tasks into a single, uniform approach rarely meets the practical requirements of each individual work area.
What are the technical requirements for functional port lighting?
In short, the technical requirements are much higher than those for standard area lighting. The lighting must be resistant to salt, moisture, corrosion, and mechanical vibrations. In addition, there are requirements for light intensity, beam angle, and color rendering, depending on the specific task being performed.
In practical terms, this means:
- IP Classification: minimum IP65 or higher for outdoor applications in seaports, due to splash water, rain, and salty sea air
- IK rating: High impact resistance is required for use on cranes, vehicles, and docks
- Color Temperature: A daylight-white spectrum (5000–6000K) improves color recognition of markings and cargo
- Light intensity: Work areas generally require higher lighting levels than roadways or open areas
- Corrosion resistance Luminaires must be resistant to salt spray and aggressive environmental influences
For applications on cranes and mobile equipment, additional requirements apply regarding vibration resistance and compact installation. Learn more about the technical background of IP and IK ratings helps you make the right choice for every application.
Why is glare in a harbor a safety hazard?
Operators, crane operators, and mobile equipment drivers must constantly make critical decisions in a short amount of time. When a light source directly enters the field of vision, the observer temporarily loses sight of what is in front of or below them. In an environment with heavy machinery, moving vehicles, and shifting loads, this can have fatal consequences.
Glare occurs in ports in two ways. Direct glare occurs when a light luminaire with a beam that is too wide or undirected shines directly into the line of sight of an engineer or driver. Indirect glare, also known as reflective glare, occurs when light is reflected off shiny surfaces such as wet docks, metal containers, or the water’s surface.
The solution lies in the use of luminaires with directional optics and full-cutoff technology, which direct the light precisely where it is needed, without spilling into unwanted directions. This principle is particularly relevant for crane lighting in ports, where the operator works from an elevated cabin and can be directly affected by poorly positioned light sources.
How does the choice of lighting affect operational continuity?
The choice of the right lighting directly impacts a port's operational continuity. Luminaires that fail due to corrosion, vibrations, or temperature fluctuations cause unplanned downtime. In a 24/7 operation, as most major terminals run, every failure leads to delays, extra maintenance, and increased safety risks.
The choice of lighting affects operational continuity on three levels. First, the mechanical quality of the luminaire determines how long it will function without failure. Second, the light output determines whether work areas can be used safely and efficiently at any time of the day or night. Third, the maintenance frequency determines how much time and money are required to keep the system operational.
Maritime lighting specifically designed for port conditions has a longer lifespan than standard industrial luminaires because the material specifications are tailored to the unique combination of salt, moisture, mechanical stress, and temperature fluctuations. Those who opt for cheap generic luminaires will pay for it in higher replacement costs and more unplanned maintenance.
When is a combined lighting strategy necessary?
Whenever a port includes both large open areas and specific work zones, each of which requires different lighting conditions, a combined approach is unavoidable. This applies to virtually all medium-sized and large terminals. A uniform approach using only one type of luminaire always results in compromises: either insufficient light at the workstation, or too much and poorly directed light across the site.
In practice, a combined strategy means that area lighting and functional lighting are designed as two separate systems and coordinated with one another. Area lighting provides a basic level of orientation and safety throughout the entire site. Functional lighting supplements this with higher illuminance levels and focused beams at the specific locations where work is being performed.
The same approach is also relevant for Offshore and maritime operations outside the port itself, where similar combinations of general and task lighting are necessary. A well-thought-out lighting design takes into account the movement of people and equipment, the height of the masts, the orientation of the luminaires, and the interaction between the two lighting systems.
Practical example: DFDS Vlaardingen
DFDS modernised its terminal in Vlaardingen: the existing section was made more sustainable while a new terminal section was built at the same time. The terminal operates 24/7 and borders a residential area. Commissioned by main contractor Boskalis, JEL took care of the lighting design, light pollution control, masts, installation and maintenance. Around 180 DarkLicht DL1 and DL2 luminaires are mounted on 34 masts of 30 m. The site achieves an average of 50 lux with a uniformity of up to 0.45, with around 30% energy savings compared with the other LED solutions offered.
On a terminal like this, the general area lighting has to illuminate a large surface evenly, while no light may spill towards the neighbouring homes. A full cut-off light distribution with precise aiming keeps the light on the work area.
For the distinction between functional lighting and area lighting, this means: first establish what the site as a whole needs in terms of light level, uniformity and light pollution control, and then determine where specific tasks call for more or more targeted light. In a sensitive environment this order matters even more, because every additional light source can also be an additional source of nuisance.
Read more about the DFDS Vlaardingen project
How JEL Products Helps with Port Lighting
JEL Products provides comprehensive lighting solutions for ports and terminals, tailored to the specific requirements of maritime and industrial environments. Whether it involves area lighting, crane lighting, or functional workplace lighting, we work closely with our customers to develop solutions based on their operational realities.
What JEL Products offers for port environments:
- Luminaires specially designed for corrosive and salty conditions
- Non-glare optics for safe work on docks and cranes
- Full-cutoff technology for precise control of light emission
- Lighting design and engineering as part of the overall process
- Guidance from installation to commissioning and maintenance
- ISO9001 and VCA** certified working method
A lighting challenge in a harbor requires more than just selecting a luminaire. It requires insight into the operation, the environment, and the specific safety requirements. Feel free to contact us via the JEL Products Contact Page to discuss which lighting strategy suits your port or terminal.