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Pool Underwater Lighting Guide — LED vs Halogen, Types & Installation Tips

Pool lighting transforms a swimming pool from a daytime feature into an all-night centerpiece. But beyond aesthetics, pool lighting involves critical safety considerations.

Safety First: The 12V Requirement

All underwater pool lights must operate at 12V low voltage, not 220V mains power. This is a safety requirement enforced by Egyptian electrical standards.

LED vs Halogen — Why LED Wins

  • Energy: An 18W LED produces the same brightness as a 300W halogen. Savings of over 90%.
  • Lifespan: LED lasts 25,000–50,000 hours vs 2,000–4,000 hours for halogen.
  • Heat: LED produces minimal heat. Halogen heats the water.
  • Colors: LED can produce white, blue, green, red, and RGB color-changing effects.

How Many Lights Does Your Pool Need?

  • Residential pools: 1 light per 15–20 m² of pool surface area
  • Hotel/resort pools: 1 light per 10–12 m²
  • Olympic/competition pools: Specific lighting standards apply

Example: A 50 m² residential pool needs 3–4 underwater lights.

Waterstar Pool Lighting Products

  • 12W LED: For small residential pools and spas
  • 18W LED (18 LED chips): Our most popular model
  • 24W LED: For larger residential and commercial pools

Installation Best Practices

  • Install lights in the pool wall, 30–50cm below the waterline
  • The junction box must be waterproof (IP68 rated)
  • Use only certified electricians for pool electrical work