swimming pool lighting

Swimming pool lighting overview:

At the risk of stating the obvious, pools are constantly damp and wet. Even in the best air-conditioned pool, the luminaires must resist high humidity and temperatures. Unless the luminaires are very high up, they will be splashed. You’ll need products rated IP67 or more.

Some swimming pools have a false ceiling, and the void is used to extract the warm, damp air. If you are using a recessed luminaire, remember that the temperature in the void can be well over 40°C. Also, the upper sections of some recessed luminaires are not IP rated.

The swimming pool lighting at Razorlux is with Wall Mounted architectural floodlights. These provide both direct and indirect illumination. The floodlights were specified by leading consultant engineers.

With a bright ceiling, it is possible to use LED floodlights directed the ceiling to illuminate the pool. If the ceiling is darker or obstructed, the floodlights can provide all or some of the illumination directly at the pool, with a small percentage at the ceiling for effect.

The floodlight itself is designed for outdoor usage so is ideal for the moist or wet interior of a swimming pool lighting project.

Other options with this floodlight include symmetric or asymmetric light output. Asymmetric is supplied in this project as lightwas directed to the centre of the ceiling. Symmetric is appropriate when the light output would be an all sides of the luminaire. As well as uplight, this fitting can be turned to provide downlight only.  Alternatively, a version can be ordered which supplies mainly both uplight and downlight. Various mounting brackets and different RAL finishes are offered. LED optics are offered with some versions.

To get a detailed Proposal for your  Swimming Pool lighting project:

Please send Autocad drawing by email. There is no charge or obligation for suitable Swimming Pool lighting Projects.

We will calculate the number of light fittings required and advise light levels. We will advise where they should be located and the cost of the Equipment. Other lighting may need to be added for landscaped areas or to add decorative architectural effect.

1.T8 tube sill lives

This may be an old-fashioned solution, but it’s well worth considering. I have used an IP54, twin 58W T8 fluorescent unit with a wrap-around diffuser. The body is GRP so there should be no corrosion problems.

The luminaires have been positioned above the pool edge, over the tiles. This gives maximum illumination where you need it most. They can also be maintained easily. There is good vertical illumination thanks to the wrap-around PMMA diffuser.

The recommended horizontal illuminance for pools is 

300 lx and this scheme achieves 335 lx with excellent uniformity. Even the centre of the pool receives over 250 lx. Most pools have white – or pale – tiles so plenty of light is reflected upwards.

The big disadvantage of this solution is the maintenance. Although the T8 has a 15,000-hour life, there are 46 fittings – and so 92 lamps to change.

2.Lowest Wattage

This solution using Razorlux’s Mirona LED high bay uses less than half the number of fittings of the T8 scheme, and is the most economical in W/ m2. This is mainly because of the more efficient LEDs and the fact that more of the light is directed downwards. For a given illumination on the water, there is less light on the walls than in a fluorescent scheme.

The narrower light distribution means we have had to mount the Mirona higher up to give a wider spread of light. We have also had to position some over the pool. However, we have managed to limit the number over the water to just six. They are fitted with a low glare diffuser, but they would still be more intense to look at than the fluorescent.

Maintenance will be minimal because after 50,000 hours the sources are still achieving L80.

Cool LEDs emit more light than warmer ones, so it is tempting to maximise the scheme efficiency in this way. But a colourtemperature that’s too cool emphasises blue veins and makes people look pale and cadaverous. I’ve gone for 4000K.

3.Light and airy

One of the best ways to light a pool is to use wide angle floodlights that reflect light off the roof. This totally avoids any chance of glare to the swimmers. It also provides good illumination on the walls and people’s faces.

This option has by far the lowest capital cost, albeit the running costs are higher than the LED solution.

We have mounted 400W metal halide floods high up on the walls. Using warm 3000K lamps is more sympathetic to people’s complexions. The viewing platform is high, so we have fitted visors on the underside of the floodlight to prevent direct viewing of the lamp/reflector. Obviously you must position equipment so no one can touch the hot luminaire.

It is relatively easy to access fittings for maintenance. Apart from excellent colour rendering, metal halide lamps have a much better life and lumen depreciation than they used to. This scheme won’t work if the pool has a glazed roof.

The best aspects of this scheme are that the space looks light and airy and the initial cost is low.

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