Why can't outdoor underwater pool lights be exposed to sunlight for a long time? Underwater pool lights are usually installed in the water, why does it involve exposure to sunlight? Exposure to sunlight refers to when the swimming pool is not filled with water or during cleaning and maintenance, and the lighting fixtures are exposed to sunlight for a long time, which can have an impact on the lights. The shell is made of plastic or stainless steel material, which has good sealing performance. However, long-term exposure to sunlight may cause aging of the material, decrease in sealing performance, damage to electronic components, and deterioration of light efficiency.
1. Aging of the shell
Long term exposure of outdoor underwater pool lights to ultraviolet radiation can cause the outer shell material to gradually become brittle and crack, and the protective coating or color on the surface may peel off or fade under exposure to sunlight, affecting their appearance and protective function.
2. Decreased sealing structure performance
The high temperature of outdoor underwater pool lights exposed to sunlight can cause the material to expand, while it shrinks when the temperature drops at night. Repeated thermal expansion and contraction may cause the sealing structure to loosen and damage the waterproof performance of the lamp. Once water enters, problems such as circuit short circuit and corrosion will follow one after another.
3. Overheating and damage to electronic components
The heat dissipation design of outdoor underwater pool lights relies on the cooling of the water environment. If exposed to sunlight without water, the internal temperature of the lamp may rise sharply (especially for LED driver power supply, circuit board, etc.), exceeding the temperature resistance limit of the components, resulting in performance degradation or burning; In places with large temperature differences between day and night, sudden cooling at night after exposure to sunlight may cause condensation inside, exacerbating risks such as short circuit corrosion of electronic components.
4. Deterioration of light efficiency performance
The lampshade or lens of outdoor underwater swimming pool lights may become blurry or yellow due to long-term exposure to ultraviolet radiation, reducing light transmittance and affecting lighting effectiveness.
In summary, outdoor underwater pool lights should not be exposed to sunlight for long periods of time to avoid damage to the fixtures and affect their normal use. When not in use, try to store the lighting fixtures in a cool, dry environment and avoid prolonged direct exposure to sunlight.
