Underwater Light Selection Strategy

Recommendations for Pools/Fountains

I. Introduction: For Underwater Light Selection, Safety and Aesthetics Are Indispensable

    Underwater lights are the core element for creating the night scene atmosphere of swimming pools and fountains. Flexible light and shadow can instantly revitalize the water feature. But as a special lamp long immersed in water, its selection is not only related to the lighting effect and decorative texture, but also directly related to the use safety. Especially for different water feature scenarios such as swimming pools and fountains, the requirements for waterproof, material, brightness of underwater lights are significantly different. This guide will break down the core logic of underwater light selection and recommend special solutions suitable for different scenarios.

II. Grasp the Core First: 3 Key Indicators That Cannot Be Ignored

1. Waterproof Rating: IP67 Is the Basis, IP68 Is More Assuring

The waterproof rating of underwater lights directly determines their use safety and service life. Focus on the second digit of the IP code (waterproof rating): IP67 can be temporarily submerged in water depth within 1 meter (≤30 minutes), suitable for shallow water fountains; IP68 can be long-term submerged in specified depth (usually ≥2 meters, see product parameters for details), which is the first choice for swimming pools, especially deep water areas. Note: Must choose products marked “special underwater lights”, ordinary waterproof lights cannot be replaced to avoid water seepage and electric leakage risks.

2. Material Selection: Corrosion Resistance Is the Core Requirement

The underwater environment (especially swimming pool water contains chlorine, fountain circulating water may contain impurities) is highly corrosive to materials. Prioritize these three types of materials: ① 316L stainless steel: strong corrosion resistance and oxidation resistance, suitable for complex water environments such as swimming pools and seawater fountains; ② ABS engineering plastic: lightweight, corrosion-resistant and cost-effective, suitable for shallow water fountains; ③ Die-cast aluminum + anti-corrosion coating: balances strength and corrosion resistance, suitable for medium and large fountains. Avoid ordinary stainless steel or plastic, which are easy to age and rust after long-term use.

3. Light Source Parameters: Adapting to Scene Needs Is the Key

Prioritize LED light source underwater lights, which have the advantages of energy saving, long service life (5-8 years) and low heat generation, avoiding the impact of traditional light source heat on water temperature or potential safety hazards. Focus on two points: ① Brightness and power: Swimming pools need high-brightness lighting (15-30W) to ensure swimming safety; fountains focus on atmosphere creation (5-15W), no need for excessive high brightness; ② Color temperature and color: Warm light (3000K-4000K) creates a warm atmosphere, suitable for leisure swimming pools; cool light (above 4000K) improves clarity, suitable for sports swimming pools; color LED (RGB) can switch colors, suitable for landscape fountains.

III. Scenario-Based Recommendations: Special Selection Schemes for Swimming Pools vs Fountains

Water Feature Type
Core Needs
Recommended Parameters
Selection Tips
Residential Leisure Swimming Pool
Safe and high-brightness, warm atmosphere, easy maintenance
IP68 waterproof, 316L stainless steel material, 15-20W LED, 3000K-4000K warm white light
Choose styles with anti-glare design to avoid direct light into the eyes; it is recommended to install evenly with a spacing of 2-3 meters
Commercial Sports Swimming Pool
High brightness, high clarity, resistant to frequent use
IP68 waterproof, 316L stainless steel material, 25-30W LED, 4000K-6000K cool white light
Comply with national standards for swimming pool lighting, color rendering index Ra≥80 to ensure clear visibility of water quality and lanes
Small Courtyard Fountain
Atmosphere creation, easy installation, cost-effective
IP67 waterproof, ABS engineering plastic/316L stainless steel, 5-10W LED, RGB color adjustable
Choose embedded or bracket-mounted installation, adjust the light angle according to the fountain height to highlight the water flow shape
Large Landscape Fountain
High ornamental value, high stability, resistant to harsh environments
IP68 waterproof, 316L stainless steel material, 10-15W LED, RGB full-color synchronous control
Match the control system to realize synchronization of lights, water flow and music, choose industrial-grade styles that are resistant to high pressure and impact

IV. Installation and Shopping Pit Avoidance Guide

1. Safety First: Must choose underwater lights with 3C certification (domestic) or CE certification (international) to ensure electrical safety; install a residual current device during installation, and seal the wiring with special waterproof connectors to avoid water intrusion into the line.
2. Avoid Blindly Pursuing High Power: Choose power according to the size and needs of the water feature. Excessive high brightness not only wastes electricity but also may damage the night scene atmosphere.
3. Consider Maintenance Convenience: Choose styles with simple structure and easy disassembly to facilitate later cleaning and replacement of accessories; it is recommended to reserve inspection ports for swimming pool underwater lights.
4. Adapt to Water Quality Environment: Seawater fountains need to choose 316L stainless steel material resistant to salt spray corrosion, and swimming pools need to choose special coating styles resistant to chlorine corrosion.

V. Summary

    The core logic of underwater light selection is “safety adaptation + scene matching”: first determine the two basic indicators of waterproof rating and material, then adjust the light source parameters according to the type of swimming pool/fountain, and finally refine the selection combined with installation and maintenance needs. Following this guide can not only avoid potential safety hazards but also accurately match the atmosphere creation needs of the water feature, making the underwater light and shadow the finishing touch of the landscape. If you are still unsure about the selection plan for a specific scenario, you can refer to the special recommended parameters in the article, or further refine the selection according to the water feature size and use environment.

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