How to replace pool light fixture?

How to replace pool light fixture?As the sun sets and twilight begins to blanket the sky, there’s nothing like taking a refreshing evening dip in your swimming pool. The soft glow of pool lights sets the mood for a magical night and keeps you and your guests safe by illuminating the pool area.

However, like any other component of your backyard oasis, pool light fixtures need a little TLC occasionally. With wear and tear or the latest technology advancements, you may need to replace your pool light fixture.

Don’t sweat it! Replacing a pool light fixture is a doable DIY project for any pool owner up for the challenge. This step-by-step guide will walk you through the entire process, from gathering the necessary tools and materials to installing your brand-new pool light fixture. So, grab your toolbox, and let’s dive right in!

Preparations Before Starting the Replacement:

A. Gather essential tools and materials

Before diving into the pool light fixture replacement process, having all the necessary tools and materials is crucial. Doing so will save you time and ensure a smooth workflow. Here’s a list of items you’ll need:

New pool light fixture: Choose a fixture that suits your pool’s needs, such as LED, incandescent, or fiber optic lights. Make sure it’s compatible with your current setup.

  1. Screwdriver: A trusty screwdriver (Phillips or flathead, depending on your fixture) is essential for removing and attaching components.
  2. Voltage tester: A must-have for ensuring the power is off before working with electrical wires.
  3. Wire strippers: These handy tools will help strip and prepare the wires for secure connections.
  4. Waterproof wire connectors: To safeguard your electrical connections against water damage, invest in high-quality waterproof wire connectors.
See also  Can a pool light electrocute you?

GFCI circuit breaker: If your pool light isn’t already connected to a GFCI circuit breaker, now’s the time to make the switch for added safety.

B. Turn off the power

Safety first, folks! Before you even think about replacing your pool light fixture, cutting off the power to the light is essential. Here’s how to do it:

  1. Locate and turn off the pool light’s power source: Typically, this will be a dedicated circuit breaker in your home’s electrical panel.
  2. Verify power is off using a voltage tester: Double-check that the power is indeed off by using a voltage tester at the light switch or junction box. You can never be too cautious when working with electricity.

C. Drain the pool to the appropriate level

You’ll need to lower the water level to access and replace the pool light fixture safely. Follow these steps:

  • Determine the water level necessary for safe light replacement: Generally, you should lower the water level to at least 6 inches below the light fixture. Consult your pool light manufacturer’s instructions for specific guidance.
  • Drain pool water accordingly: Use your pool’s drain system or a submersible pump to lower the water level to the desired height. Remember to follow local regulations for water disposal.

Removing the Old Pool Light Fixture:

A. Remove the fixture from its niche

Now that you’ve prepared the area, it’s time to remove the old pool light fixture from its niche:

  • Unscrew and detach the faceplate: Locate the screws holding it and use your screwdriver to remove them carefully. Once the screws are out, gently pull the faceplate away from the niche.
  • Pull the fixture out of its niche: With the faceplate removed, you should now be able to carefully pull the old pool light fixture out of its niche. As you do this, the wires connected to the fixture will also emerge from the conduit.

B. Disconnect the wiring

With the old fixture out of its niche, it’s time to disconnect the wiring:

  • Locate the junction box: Find the junction box, typically located near the pool equipment or mounted on a nearby wall. This box houses the electrical connections for the pool light fixture.
  • Disconnect the old fixture wires: Open the junction box, and using your voltage tester to confirm that the power is off, locate the wires connected to the old pool light fixture. Carefully disconnect these wires, removing any wire connectors or electrical tape as necessary.
  • Remove the old fixture completely: You can safely remove the old pool light fixture from the pool area with the wires disconnected. Remember to dispose of it according to local regulations and guidelines.
See also  Pool Light Remote Control Instructions

Installing the New Pool Light Fixture:

A. Prepare the new fixture

  1. Before you start connecting the new pool light fixture, please take a moment to prepare it for installation.
  2. Unpack and inspect the new light fixture: Remove the new pool light fixture from its packaging and inspect it for any damage or missing parts. If everything looks good, proceed to the next step.
  3. Review manufacturer’s installation instructions: Carefully read the instructions provided, as these will guide you through any specific steps or precautions you’ll need to follow during installation.

B. Connect the wiring

Now that your new fixture is ready, it’s time to connect the wiring:

  1. Thread wires through the conduit: Carefully feed the new fixture’s wires through the conduit leading to the junction box. Leave enough slack in the wires to allow for easy attachment to the junction box.
  2. Strip and connect wires using waterproof wire connectors: Use your wire strippers to strip the ends of the wires, exposing the metal cores. Then, using waterproof wire connectors, connect the new fixture’s wires to the corresponding wires from the junction box (typically, black to black, white to white, and green or bare copper to green or bare copper).
  3. Secure connections inside the junction box: Tuck the wire connectors safely inside the junction box and close the box securely once all wires are connected.

C. Attach the fixture to the niche

With the wiring in place, it’s time to secure the new pool light fixture in its niche:

  1. Position the new fixture in the niche: Carefully place the new pool light fixture into the niche, ensuring it fits snugly and is oriented correctly.
  2. Secure the faceplate using screws: Align the faceplate with the screw holes on the niche, and use your screwdriver to tighten the screws, securing the new fixture in place.
  3. Ensure proper alignment and fit: Before moving on, double-check that the fixture is properly aligned, seated, and secured within the niche.
See also  Is a Pool Light AC or DC? You Should Know

Finishing Up:

A. Restore power and test the new light fixture

  • Once the new pool light fixture is securely in place, it’s time to restore power and test its functionality:
  • Turn the power back on. Return to your home’s electrical panel and turn the power back on for the pool light circuit.
  • Test the new fixture for proper function: Switch on the pool light to ensure it’s working as intended. Check for any flickering, dimming, or other issues that may indicate a problem with the installation.

B. Refill the pool to the appropriate water level

  • With the new pool light fixture installed and tested, it’s time to refill your pool:
  • Use your pool’s filling system or a garden hose to add water to the pool, returning it to its average water level.
  • Be mindful of local water usage regulations and consider using a pool cover to minimize evaporation and conserve water.

C. Perform routine maintenance checks to ensure the longevity of the fixture

  • Now that you’ve successfully replaced your pool light fixture, it’s important to keep it in good working order with regular maintenance:
  • Clean the fixture’s lens and faceplate periodically to remove dirt and algae buildup, ensuring optimal light output.
  • Inspect the fixture for signs of water ingress, damaged seals, or corroded wires during your routine pool maintenance.
  • Monitor the pool light’s performance, and address any issues promptly to prevent further damage or safety hazards.


We’ve walked you through the entire process of replacing your pool light fixture, from gathering the necessary tools and materials to removing the old fixture, installing the new one, and finally, finishing up with testing and refilling the pool. Following these steps, you can confidently tackle this DIY project and keep your pool area safe, functional, and inviting for those unforgettable poolside experiences.

Replacing a pool light fixture might seem daunting initially, but any pool owner can successfully take on this project with a little patience, the right tools, and a can-do attitude. By doing it yourself, you’ll save on professional installation costs and gain valuable skills and a sense of accomplishment from maintaining your backyard oasis.

Regular maintenance and timely replacement of pool light fixtures are essential for ensuring the safety and enjoyment of your swimming pool. Proper pool lighting creates a beautiful atmosphere for nighttime swimming and helps prevent accidents and injuries.

So, don’t hesitate to invest time and effort in keeping your pool lights in tip-top shape and reap the rewards of a well-lit and welcoming pool area. Happy swimming, and here’s to many magical evenings by the pool!

Ryan Ricks
About the author

Ryan Ricks

Welcome to our website dedicated to all things pool-related! My name is Ryan Ricks, and I am a passionate pool lover who wants to share my knowledge and expertise with fellow pool enthusiasts like you. Ask any question in the box below to answer all of your Pool related Questions using the power of AI!

Ask Our AI Bot Any Pool Questions Below!