There are many small spaces in the lighting design, or special areas, which better reflect the quality of a project. These spaces are not just solutions and effects, but also require more nodes and technology. I hope that I will continue to focus on these spaces in the future.
With the continuous development of LED technology, swimming pool led lighting has become more attractive and interesting. Because of the rich color temperature of LED light source, flexible control of RGB and even RGB, coupled with its energy saving and long maintenance cycle, LED swimming pool lights are now very popular.
So for today’s pool lighting, what should we consider when choosing LED flood lighting fixtures when designing lighting?
Let’s discuss a few points as follows:
1, the surface material of the luminaire
The surface material of the luminaire must be 1.4571 stainless steel. For salty water with higher saltiness or temperature, even 1.4539 alloy steel is needed, and the surface electropolishing treatment is more anti-corrosion. In fact, unlike everyone’s common sense, stainless steel will also be rusted and discolored, especially if the surface treatment is not proper. The mounting of the luminaire and other parts, such as wire joints, are also the same, requiring the use of suitable stainless steel.
2, the structure of the lamp
For the structure of the luminaire, it is necessary to be able to waterproof the wire connections in the luminaire and to cut off the water into the luminaire when the wire is broken. The gasket between the glass and the lamp body must be an ageing resistant silicone material. LED electronic screens also need to be protected with conformal coatings.
3, the embedded parts of the lamp
The embedded part of the luminaire must have flexible piping connected to the outside of the pool, and the connection between the wires and the pipeline is waterproof. If there is no waterproof connection between the wire and the pipeline, even if the pipeline is above the water pipe, it may cause siphoning.
4, the choice of luminous flux of the lamp
The choice of luminous flux for a pool luminaire depends on the brightness of the ambient light and the size of the pool. The cool white light with higher color temperature absorbs less in water than warm white light. This is because the blue light is absorbed by 5%, the green light is 3%, and the red light is 16% after one meter of light is irradiated in the water. The penetration rates of other distances are shown in the table below:
So the use of cool white LED lights has two advantages: higher LED efficacy and lower absorption in water.
For rectangular swimming pools of different widths, the guiding values of the required luminous flux for the approximate LED luminaire are as follows:
The wires used must be special underwater wires that match the diameter of the copper core specified by the luminaire manufacturer. If the luminaire does not have wires (for a more flexible wire length), be sure to follow the manufacturer’s recommendations to seal the connections. The same requirements apply to the splitter box and the watertight sealed branching system.
Ideally, the connection of the wires and fixtures is done at the luminaire factory, which requires the length of the wires to be determined when the luminaire is placed. For the values listed above, it is more obvious that the lighting effect in the water is more obvious. It is recommended that the illumination of the swimming pool environment be kept below 100lx. For rectangular swimming pools, if you want a more uniform illumination, the luminaires are recommended to be mounted on both sides of the long side, with a 90 degree beam angle, and the luminaires are spaced about half the width of the pool.
Swimming pool maintenance often requires lowering the water level or emptying the water in the pool, but the end users of the pool need to pay attention to the fact that many high-power LED lamps require water to help cool down.
All in all, designing a satisfactory pool lighting requires a high level of lighting, and requires good lighting quality. The luminous flux, size, color, color temperature, beam angle, etc. of the lamps need to be matched.