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can you change a pool light underwater


Author: Poolking - Swimming Pool Equipment Manufacturer

Underwater Pool Light Replacement: Can It Be Done?

Swimming pool lights add a touch of class and sophistication to any pool area. Not only do they create the perfect mood for night swimming, but they also enhance pool aesthetics. However, like any other electronic device, pool lights have a lifespan and will need replacement or repair over time. This brings us to the question, can you change a pool light underwater?

In this article, we will attempt to answer this question and provide a step-by-step guide to help you replace your pool light safely.

What Type of Pool Light Do You Have?

Before venturing to change your pool light, you need to identify the type of lighting system your pool has. Generally, there are three types of pool lighting systems: LED lights, halogen lights, and fiber optic lights. However, the majority of pools now have LED lights, and they're more commonly installed. LED lights are known for their energy efficiency, cost-effectiveness, and longevity.

So, Can You Change a Pool Light Underwater?

Yes, you can replace a pool light underwater. However, working with electricity underwater is dangerous, and it's essential to take the necessary safety precautions when replacing pool lights. If you are not very comfortable working in and around water or with electricity, it is best to hire a professional. A professional will not only ensure your safety but also provide valuable advice on proper pool maintenance.

What You Will Need to Change Your Pool Light

To change your pool light, you will need to have the following tools:

- A replacement pool light

- A flat-head screwdriver

- A Phillips-head screwdriver

- A GFCI outlet tester

- A replacement bulb (for halogen pool lights)

Step-by-Step Guide to Replacing Your Pool Light

Step 1: Switch off the Power Supply

Before removing the light fixture, ensure that you switch off the power supply. If possible, turn off the circuit breaker, and if you can't locate it, consult an electrician. You can also use a GFCI outlet tester to confirm whether there is a circuit. You never want to handle a live electrical circuit with water present.

Step 2: Remove the Fixtures

To access the pool light, you first need to remove the fixtures surrounding the light. These fixtures are either unscrewed or simply lifted off. With LED lighting, you may only need to remove some screws to free the light from its mounting bracket.

Step 3: Remove the Burnt Out Light

Once you've opened the light fixture, the bulb will often be free to come out. Hold onto it and pull gently until it releases. If you have a halogen bulb or a longer LED bulb, you both need to turn it counterclockwise to remove it.

Step 4: Install the New Bulb

Insert the new bulb gently, ensuring that it's aligned and there are no obstructions. For longer LED bulbs or halogen bulbs, screw them in blindly. Pay close attention to the distance and position of the bulb as too close can cause melted plastic around the light fixture.

Step 5: Reinstall the Fixture

Now that you've installed the new light bulb, replace the fixtures that you removed in step 2. Carefully place the light fixtures on top, screwing back anything you removed for access.


Changing a pool light underwater can be done, but it's always best to seek professional help when necessary. Remember to switch off the power supply before any repairs, wear protective gear, and follow the steps carefully. With these steps, you can level up your pool game with a brand new lighting.


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