To design a satisfactory Fountain light, the requirements for lamps are very high. It requires good quality of underwater fountain lights. The luminous flux, size, color, color temperature, beam angle, and high-quality construction of lamps should be well controlled. The lighting design of three common fountain types is as follows: Design I: 1. The lamp is arranged beside the spouted water column - because water and air have different refractive indexes, part of the light seems to be tied in the water column; 2. Lamps with narrow beam angle - particularly effective. Design II: 1. The lamp is arranged next to the spouted water column - at the spouted water column, the water is integrated into a bundle, and the water flow density is the largest. When the water flows through the air, it will diffuse. 2. The lamp is arranged at the place where the water falls - where the water, like raindrops, shines with light. 3. Lamps with narrow beam angle at the water outlet position - particularly effective. 4. Lamps in the water drop position should preferably be immersed about 10 cm below the water surface. Design III: 1. The lamp is arranged next to the spouted water column - at the spouted water column, the water is integrated into a bundle, and the water flow density is the largest. When the water flows through the air, it will diffuse. 2. The lamp is arranged at the place where the water falls - where the water, like raindrops, shines with light. 3. Lamps with narrow beam angle at the water outlet position - particularly effective.
The lamps at the water drop position should be immersed about 10 cm below the water surface to make the falling water droplets glitter. Another type of fountain is different from the traditional one. It is called Yongquan. The lighting design of Yongquan can refer to the fountain lighting design.
Safety requirements for fountain lamps: Underwater lamps shall use products with protection grade of IP68. Especially in damp places, lamps with corresponding protective measures shall be adopted. In outdoor places, the protection grade of lamps shall not be lower than IP54. The lighting voltage shall comply with the following requirements: the underwater lamps shall be powered by safe extra low voltage, and the AC voltage shall not be greater than 12V, and the ripple free DC power supply shall not be greater than 30V. Luminous flux of LED fountain lamp: It depends on the brightness of the ambient light and the size of the swimming pool. The absorption rate of cold white light with higher color temperature in water is lower than that of 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 water.
