Underwater Lights

💡 How to Replace Underwater Pool Light Bulbs

Like any other lights, underwater bulbs can burn out over time. While the replacement process might seem intimidating, the right tools and step-by-step guidance can make it straightforward. Although we recommend hiring an electrician or a professional pool service technician for the job, if you choose to do it yourself, follow the guide below.

There are two types of underwater lights, although many brands produce them

• Non-Niche Lights: These lights are smaller and fit into a standard wall fitting.
• Niched Lights: These are larger and housed in a built-in “bucket” (niche) in the pool wall.

Knowing the exact brand of light in your pool is crucial. Verify details on your invoice or reach out to your pool builder. Confirm you have the appropriate replacement bulb or LED module before starting. Using the wrong type can cause damage such as immediate light failure, overheating, electrical hazards, or voided warranties. An incompatible bulb or module may also lead to leaks, poor sealing, or damage to the fixture’s wiring and components. Therefore, it’s vital to use the correct replacement and follow the manufacturer’s instructions to ensure safety and longevity.

⚠️ Safety First

• 🔌 Turn off the breaker before touching the light
• 💧 Never drain or lower the water in a fiberglass pool
• 🚫 Do not test lights out of water
• 🧰 Keep all electrical components dry

🔧 Nicheless Pool Light Replacement
(PAL, Treo, Jandy, CMP, etc.)

1. Turn Off Power at the Breaker
   Essential for safety.
2. Remove the Light (Underwater)
   • Locate the retaining screw or twist-lock
   • Loosen it
   • Light releases from the wall
   • Pull gently to the surface — extra cord is normal
3. Bring the Light to the Deck
   Place on a towel and dry the exterior.
4. Open the Light Housing
   Depending on the brand:
   • Remove face ring
   • Twist off bezel
   • Or remove screws

   Inside you’ll find the lens, gasket, and LED module/bulb.

5. Replace the Bulb or LED Module
   • Remove old module
   • Install new one firmly
   • Inspect/replace gasket
   • Reassemble tightly
6. Reinstall the Light
   • Coil cord neatly
   • Insert back into wall fitting
   • Secure with screw or twist-lock
7. Restore Power
   Only after the light is fully reinstalled underwater.

🔧 Niche Pool Light Replacement
(Traditionally 500W style)

1. Turn Off Power at the Breaker
2. Remove the Retaining Screw
   Located at the top of the stainless steel face ring.
3. Pull the Light to the Surface
   Extra cord stored behind the light allows it to reach the deck.
4. Open the Light Housing
   You’ll see:
   • Stainless face ring
   • Lens
   • Gasket
   • Bulb

   Open by removing perimeter screws or releasing the clamp band.

5. Replace the Bulb
   • Remove old bulb
   • Install correct underwater-rated bulb
   • Replace gasket if worn
   • Reassemble tightly
6. Reinstall the Light
   • Coil cord
   • Place back into niche
   • Secure with retaining screw
7. Restore Power
   Only after the light is fully reinstalled underwater.

⚠️ Critical Warnings

• 🔥 Never test a pool light out of water — it can overheat or fail instantly
• 💦 Fiberglass pools must remain full at all times
• 🛑 Always ensure the gasket is in good condition
• 🔧 Keep all electrical components dry during servicing

If you’re unsure or uncomfortable with any part of the process, always consult a licensed electrician or contact your pool installer for assistance.