The hospital on a cruise vessel is designed to combine functionality with hygienic aspects. The hospital staff must be able to differentiate between different colours and must be provided with bright lights in order to see fine details.

Different areas on a ship require special demands on lighting
Hospitals are hygienic rooms on a ship and so have the highest demands on cleaning everything inside this area. Dust is a factor that must also be considered in a hospital. As a result of the high demands placed on the quality and durability of its products, the Glamox Group operates modern assessment and testing laboratories in Norway and Germany for the simulation of a wide variety of environmental conditions including hospitals.

Important factors when working with lighting solutions for a hospital:

- Light quality.
- IP class (clean area).
- Mechanical and compact design.
- No maintenance and reduced power consumption (high energy efficiency).

Light quality
In a ship’s hospital light quality is important for helping to distinguish between colours and details. The colour-rendering index (CRI) should be above 80 to enable staff to differentiate between different colours and to see true colours. For medical examination luminaires, the CRI should be even higher (above 90). To avoid shadowing and to reduce glare (UGR, uniform glare ratio) a proper light calculation should be carried out and luminaires with homogeneous light distribution should be installed. The preferred colour temperature in a hospital should be 3000 - 4000 Kelvin, which will ensure a good balance between the light output and comfort for the human eye.

IP class (clean area)
The most important requirement is the IP class. Lighting with dust protection is critical in order to prevent dirt from getting inside the luminaire and to prevent the ingress of dust and insects to the fixture in clean areas. A minimum requirement of IP 44 is recommended to ensure an adequate clean room area.

Mechanical and compact design
The European standard, IEC 60092, requires that luminaires installed inside a ship’s hospital should be designed for an ambient temperature of 45°C. Loose internal wiring caused by vibration is dangerous and can cause short-circuits. The luminaires should therefore be designed according to the relevant marine standards. To reduce maintenance to a minimum, Glamox recommends the use of LED light fittings.

No maintenance and reduced power consumption
Maintenance-free, easy installation and various mounting options ensure flexibility and time savings, primarily because some lighting may be located in areas that are difficult to reach or often with no access at all. The luminaires should consume as little energy as possible in order to reduce the size of power generators, to save energy and to reduce pollution/emissions. Therefore, LED lighting is recommended. LED luminaires are virtually maintenance-free, which means that cruise vessels with LED lighting will have lower operating costs compared to vessels with conventional luminaires. In addition, the reduced power consumption of LED lighting onboard has a positive impact on the cruise vessel’s Air Conditioning system, as less heat is emitted from the lighting, which means less AC power is needed and fuel consumption is reduced. The initial investment of the LED installation may be higher than a traditional lighting installation, but the reduced energy consumption and lower maintenance costs of LED lighting means that this price difference will be quickly recouped and payback on the investment is recovered quickly.

All lighting products in a cruise vessel’s hospital should be designed in accordance with marine standards and regulations.