As with all areas onboard a vessel, passageways have special demands on the installed equipment. The required lighting solution must work in all weather conditions. A good lighting solution will also provide a safe working environment.
Different areas on the ship require special demands for lighting 
Passage ways are outside areas exposed to heavy weather conditions this means, as well as achieving a reliable and even distribution of light output, it is also important to achieve the correct light colours, light intensity and a robust, stable light fixture for long term reliability withstanding the rough conditions in passageway environments. Using the most appropriate material for the light fixture is important in order to ensure robustness and longer operating life of the fixture.

Important factors when working with lighting solutions for passageways: 

- IP class. 
- Mechanical strength/impact resistance. 
- No maintenance and reduced power consumption (high energy efficiency). 
- Light quality. 

IP class 
One important demand is the IP class of the light fitting. The challenge for outdoor areas is not only to protect the light from rain and spray water, but also to ensure that the light fixture can withstand the continuous impact forces from waves in heavy seas. In addition, the light fixtures must also survive intensive cleaning, using brushes, tools and often high-pressure cleaners. 

Mechanical strength
Using the correct combination of materials in the luminaire is critical in order to ensure robustness and a long operating life. Materials are particularly important here and should be selected to withstand high shock and vibration. Especially for areas where heavy vibrations are present, we recommend the use of LED fittings. LEDs withstand shock and vibration due to the design of the diodes. No additional vibration suspension is required. A wide range of ambient temperatures is also an important demand. Navy or Marine vessels must be able to navigate around the world – from Arctic areas down to -40°C or lower, to tropical areas at +50°C. Ideally, the light output and light quality should be consistent in all temperature bands. 

No maintenance and reduced power consumption

An important requirement onboard a Navy or Marine vessel is to install luminaires that are virtually maintenance-free. This reduces or eliminates the labour costs primarily associated with the maintenance, servicing and replacement of luminaires in difficult-to-reach locations. The luminaires should consume as little energy as possible in order to reduce the size of power generators, save energy and minimise pollution. Therefore, LED is recommended. LED luminaires are virtually maintenance-free, which means that vessels with LED lighting will have lower operating costs compared to vessels with conventional luminaires. The initial investment of the LED installation may be higher than a traditional lighting installation, but the LED’s reduced energy consumption and lower maintenance costs means that this price difference will be quickly recouped and payback on the investment is recovered quickly. 

Light quality 
In passageway areas, the light output quality is important due to visual perception and to enable the crew to distinguish between different colours and details. The colour-rendering index (CRI) should be above 80 to enable differentiation and to see true colours, the lighting illumination should have an average level of 200 lux. To avoid shadowing and reduce glare (UGR), a proper light calculation should be undertaken and luminaires with homogeneous light distribution should be selected. 

We always recommend the use of Navy or Marine-approved lighting products in passageways.