Underwater Lighting

With the summer in full swing and thoughts of cooling off in a pool, it seems a good time to discuss what underwater lighting choices you have for your pool project.

Underwater Lighting Challenges

Light fittings that reside underwater permanently have the unique challenge of preventing water ingress, so they need to be engineered in a different way to normal fittings.

Also, unlike a lot of other light fittings, they are not easily accessible, so you need fittings that are reliable, durable and will require minimum maintenance.

What To Look For In Underwater Lighting Fixtures

Ingress Protection Ratings
Enclosures and housings can be rated according to what level of sealing effectiveness they provide. To help you decide what enclosures are suitable for a project, there is an international Ingress Protection (IP) rating standard.

Since you want to immerse your lighting fixture into water on a permanent basis, the light fitting needs to have an IP rating that suits.

The highest rating for water ingress is IP68. An IP68 enclosure will provide protection from water over prolonged periods of time, and is therefore essential for any underwater lighting luminaire.

The Corrosive Properties of the Luminaire Housing
The internal electronics and LED bulb need to be protected from water, and the main component for preventing water ingress (apart from the sealing) is the external housing.

The choice of material for the luminaire housing is extremely important, since the wrong type of material will perish quickly and let water in.

Certain types of water will also have a more corrosive effect on the material than others.

After the precious metals of platinum, gold graphite and silver, stainless steel (316 grade) has the best anti corrosive properties, so it is ideal for water related solutions, and is often termed ‘marine grade’ due to it’s excellent performance in marine environments.

Thermal Management
Electronics and the LED lamp generate heat, and this heat needs to be managed and dissipated. If the heat is not controlled, it will build up, and the internal electronics will overheat and eventually fail.

Sealing The Luminaire
Whilst the main body of the housing is a key factor, there will always be gaps that could let water into the luminaire. Rubber seals and sealant are additional measures that will be needed to ensure that the light fitting is water tight.

What Products Could I Consider for My Underwater Lighting ?

Lumascape have more than two decades experience of manufacturing lighting solutions for the toughest outdoor and underwater environments across the world, so they have a lot of experience in engineering underwater lighting solutions.

The Lumascape LS333ANS-2LED is constructed entirely from 316 grade stainless steel, and is engineered to meet IP68 ratings. It can be submersed in depths of up to 2 metres and can provide white, blue or RGB light to create a variety of underwater lighting effects.

Lumascape also have a comprehensive portfolio of in ground, direct burial and external architectural lighting solutions. Their rigorous design and engineering expertise means that they have established themselves as a market leader across the world for providing lighting solutions for all kinds of challenging environments.

If your application involves water, direct burial or lighting that needs to be mounted in the ground, then contact Architainment to discuss how our range of solutions can ensure your project is a success.