LED Underwater Lights: Complete Specification Guide

Comlite manufactures IP68 LED pool lights and underwater fountain lights for swimming pools, water features, ponds and hot spring installations. Our range includes recessed (niche) pool lights, surface mounted pool lights, fountain and water-feature lights, and RGBW colour-changing models — all built around sealed stainless steel housings for continuous submersion.

This page covers the practical decisions behind specifying an underwater pool light: recessed versus surface mounted, what IP68 actually guarantees, how to choose between single colour, RGB and RGBW, and which housing material survives chlorinated or salt water.

Recessed vs Surface Mounted Pool Lights

The choice is usually made for you by the pool structure.

3x3W IP68 LED swimming pool light with 316 obudowa ze stali nierdzewnej
3x3W IP68 LED swimming pool light with 316 obudowa ze stali nierdzewnej

Recessed (Niche) Pool Lights

Recessed lights sit inside a niche built into the pool wall, so the lens finishes flush with the surface. They are the standard choice for new concrete and liner pools, give the cleanest visual result, and are what most designers specify. The trade-off is installation: the niche must be positioned and waterproofed during construction. Retrofitting a niche into an existing pool means breaking the shell. Browse our recessed LED pool lights.

Surface Mounted Pool Lights

Surface mounted lights screw or bracket directly onto the pool wall, protruding slightly into the water. They are the pragmatic answer for renovation projects, above-ground pools, concrete ponds and fibreglass shells where cutting a niche is not viable. Installation is faster and fully reversible. See surface mounted pool lights.

What IP68 Actually Means for a Pool Light

IP ratings are often quoted without explanation, so here is the part that matters:

  • IP65 — dust-tight, protected against low-pressure water jets. Adequate for a light near a pool, not in one.
  • Stopień ochrony IP67 — protected against temporary immersion to 1 metre. Not designed for permanent submersion.
  • IP68 — protected against continuous immersion beyond 1 metre, with the actual depth defined by the manufacturer.

For any light that stays underwater, IP68 is the minimum. But the code alone is not enough — ask what depth the rating was tested at, and whether the test covered thermal cycling. A light that passes a cold bench test can still fail after a season of daily heating and cooling.

Single Colour, RGB or RGBW?

  • Single colour (ciepła biel, cool white, niebieski) — highest lumen output per watt, lowest cost, simplest control. The right answer for most residential pools and for any project where the light is mainly functional.
  • RGB — red, green and blue channels mixed to produce colour. Good for decorative water features and mood lighting, but the white it produces is a mixed approximation and looks noticeably off on white pool surfaces.
  • RGBW — adds a dedicated white channel alongside RGB. You get saturated colour when you want it and clean, true white when you need it. This is what we recommend for hotel, resort and architectural projects. See our RGBW colour changing pool lights.

Housing Material: 316 Stainless Steel vs Polymer

The water chemistry decides this one.

12W RGB LED underwater fountain light for water features
12W RGB LED underwater fountain light for water features

For standard chlorinated freshwater pools, a quality polymer or ABS housing performs well and keeps cost down. For saltwater pools, seawater features, hot springs and mineral spas, specify 316 or 316L stainless steel. Lower grades will pit and stain in chloride-rich water, and a failed housing means draining the pool to replace the fitting — the light itself is the cheapest part of that job.

We build our underwater range in 316L stainless steel and test for both UV resistance and corrosion in seawater conditions. Material certificates for the 316L stainless steel and the corrosion test method are provided with your quotation.

Aplikacje

Swimming Pools

Residential, hotel and municipal pools. Recessed lights for new builds, surface mounted for renovation. Warm white remains the most specified colour; RGBW is increasingly requested for resort work.

Fountains and Water Features

Fountain lights face moving water, splash zones and frequent air-water cycling, which is harder on seals than steady immersion. Compact underwater spotlights with adjustable brackets are usually the right form factor. See our LED fountain lights.

Hot Springs and Spas

Elevated temperature accelerates seal ageing and corrosion. Use 316L stainless housings, confirm the rated operating temperature, and avoid polymer housings in mineral water.

Ponds and Landscape Water

Decorative ponds and garden water features typically use lower wattage units with wider beam angles, often in warm white to avoid a clinical look at night.

Our Pool and Fountain Lights

Why Source from Comlite

Our pool and fountain range shares its sealing technology with our deep sea fishing lights — the same IP68 potting, the same 316L stainless steel housings and the same pressure-test regime, applied to a decorative product. That is unusual: most decorative pool lights are not built to a standard derived from 100-metre submersion work.

12x2W LED underwater swimming pool light, recessed installation
12x2W LED underwater swimming pool light, recessed installation
  • 316L stainless steel housings with anti-UV and anti-corrosion testing
  • IP68 as standard, with depth-rated pressure testing
  • Recessed, surface mounted and submersible spotlight formats from one factory
  • OEM support for project specifications: beam angle, colour temperature, cable length, control protocol

Frequently Asked Questions

What IP rating do I need for an underwater pool light?

IP68. IP67 only covers temporary immersion to 1 metre and is not sufficient for a light that remains underwater. Always confirm the tested depth behind the IP68 claim, not just the code.

Can I replace an existing halogen pool light with LED?

In most cases yes. Surface mounted LED units can often be fitted to the existing fixing points, and retrofit LED lamps are available for some standard niche sizes. Send us a photo and the dimensions of your current fitting and we will confirm.

What is the difference between RGB and RGBW pool lights?

RGB mixes red, green and blue to approximate white, which looks tinted on white pool surfaces. RGBW adds a dedicated white channel, giving true white light plus full colour capability. RGBW is the better choice for architectural and hospitality projects.

Do I need stainless steel for a saltwater pool?

Yes. Chloride-rich water pits lower grades of steel and degrades standard polymer housings faster. Specify 316 or 316L stainless steel for saltwater pools, seawater features and hot springs.

Poproś o wycenę

Send us your pool type, dimensions, water chemistry and preferred control method, and we will specify a model list and pricing. Project quantities and OEM configurations are welcome. Contact our team

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