When is lighting suitable for swimming pools?

Few environments make greater demands on a lighting system than a swimming pool. Yet the influence of heat, moisture and chlorine on lighting is often underestimated. These are important risk factors that affect the lifespan and quality of swimming pool lighting. What makes lighting really suitable for swimming pools? We’ll explain.

Different risk factors

A swimming pool is a warm environment, in which an air temperature of 32 degrees Celsius at floor level is quite normal. Heat rises, causing the heat accumulation at the top of the swimming hall to increase significantly. At a height of six metres, it is many times higher, up to 45 degrees Celsius. Lighting fixtures have to endure these extreme temperatures – in addition to the heat that they generate themselves – day in, day out, year in, year out. Light sources, including LEDs, are constantly subjected to heavy loads. As a result, their service life is reduced exponentially or they fail prematurely.

Humidity is also a serious challenge for swimming pool lighting. The air humidity is easily 55 per cent, but in practice it can be more than 70 per cent. That is disastrous for electronic components such as printed circuit boards, LEDs, drivers, power supplies and dimmers. In addition to malfunctions and breakdowns, a warm and humid environment also entails a risk of corrosion.

A final important risk factor for swimming pool lighting is the presence and influence of chlorine. Underwater lighting seems to be the most susceptible to this. Yet it is the lighting above the pool that is most at risk. The combination of heat, moisture and chlorine results in the development of an aggressive chlorine-containing moisture layer (chloride ions). This affects not only the fittings but also the fixing materials and the components, such as LEDs, printed circuit boards, power supplies, drivers and more.

Specialised swimming pool lighting

With all these factors in mind, we develop high-quality LED lighting. For more than fourteen years, we have not been following the well-trodden paths, but our team has been immersing itself in the latest techniques and pushing the limits. For example, we developed our first underwater lamp in 2008. Not with the then current halogen lighting, but with innovative LED technology, because we believed in the unique properties and possibilities of this technology. A philosophy that we still share today.

Our product developers know which materials are suitable for a swimming pool climate. Because they are always up to date with the latest developments, rules and regulations, but especially because they constantly and thoroughly test all materials. From LEDs, drivers and shielding to cables and fastening materials. The result? A range including line lighting, spotlights and underwater lighting that functions optimally in the demanding swimming pool environment.

To make the fittings and LEDs resistant to the high swimming pool temperatures, we developed the Auto Temperature System (ATS). A unique and smart technology, with which a fixture regulates its own temperature. When it gets too hot, the lighting automatically dims. The LEDs in the luminaires are protected by dimming back, for an optimal life span.

Moisture-proof, safe and certified lighting

All our products are designed, developed and manufactured in-house. Our team strives for complete control of every part of the production process. For example, we have our own pick-and-place department, where the LED boards and electronic components are produced. In order to guarantee the very best quality, these are checked down to component level in the X-ray machine.

Through continuous research and development, the underwater lighting of EVA Optic has been internationally recognized for years as high quality and very reliable. All underwater lights demonstrably comply with the international safety standard for underwater lighting. The underwater lighting also complies with the NEN guideline NPR 9200:2015.

Contact us for advice swimming pool lighting, inspiration and professional lighting advice.

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