Underwater lighting in swimming pools is not a mandatory element, but it is nice to have it because it makes the appearance of the pool during the dark part of the day very attractive. It is necessary to determine the optimum number of floodlights required and to position them in such a way that no unlit areas result. It is desirable that if there are monolithic steps in the pool they should be well lit.
Floodlights should be set at a height so that burned out fixtures can be replaced even with a full pool. It is recommended to set them 50 or 60 cm below the water level.
Regardless of the type of underwater lighting, it consists of a recess for recessing and a luminaire. It is desirable that the recesses are laid before the concrete is poured. In this way, they will seal better and avoid possible leaks during the operation of the pool.
The underwater spotlights in the pools are made of UW-resistant ABS plastic. Versions are also available with a stainless steel decorative part.
The Underwater lighting for swimming pools can be halogen and LED.
Advantages and disadvantages of halogen pool lighting
Halogen floodlights can be of two types: recessed and flat for installation on a poured wall. In the case of an existing pool, it is not desirable to chisel out the walls to install lighting, because this is a prerequisite for subsequent leaks. Flat floodlights are suitable.
The advantage of halogen lighting is the low initial investment. Its main disadvantage is the lower luminaire efficiency. They have a high current consumption - 300 W and a relatively short lifetime - about 800 - 1 000 hours.
Advantages and disadvantages of LED pool lighting
LED lighting is the state-of-the-art solution for illuminating any site, including swimming pools, fountains and water features. It can achieve impressive lighting effects. There are multiple colours that can be changed via preset programs from a controller placed in the dashboard. LED luminaires have a long lifetime - 30,000 to 50,000 hours, low current consumption - 25 W and a significant reduction in the amount of wiring and the number of transformers.
LED lighting has a higher initial investment. But due to its energy-saving characteristics, this investment practically pays for itself in one summer season of 4 months.
The underwater lighting that is installed in the swimming pools is implemented for a voltage of 12 V for the safety of bathers. The transformers galvanically separate the mains from the underwater lighting, and the 12 V voltage ensures the safe use of the pool.
