Installing a waterproof light in your shower is an easy way to improve the lighting and create a more inviting space. However, it’s important that the light is properly sealed and watertight to prevent leaks and electrical issues. Here are some tips on how to select, install, and maintain a waterproof shower light.
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Choosing a Waterproof Shower Light
When selecting a shower light, look for one that is specifically designed for wet locations. Opt for an LED light, which will be more energy efficient and long lasting than incandescent or fluorescent bulbs. An LED shower light will also remain cooler, which helps prevent issues with condensation building up inside the fixture.
Avoid any fixtures with an open bottom, as this can allow water to get into the electrical components. The entire light unit should be sealed and rated at minimum for damp locations, if not fully waterproof. Check that any openings, like where the wire feeds through, are properly gasketed and sealed.
Purchase a shower light that is UL listed, with clear labeling stating it’s intended for wet, damp or humid environments. This ensures the light has passed safety testing. A waterproof rating of at least IP65 means the unit is dust tight and can withstand low pressure water jets from any direction.
Shower Light Types
There are a few common types of waterproof lights designed for shower installations:
- LED niche lights – These slim, rectangular lights fit into a niche or recessed space in the shower wall. The trim and any openings should be sealed.
- LED Globes – A waterproof LED globe bulb can be used in some open fixtures, like a pendant light over a shower. Ensure the fixture does not fill with water when showering.
- Vapor-proof lights – Circular or square lights that usually mount to the ceiling or wall. They have a durable plastic or metal housing that seals out moisture.
- Waterproof LED panels – Flat panel lights provide diffuse, uniform lighting. Silicone seals prevent water intrusion.
Installation Tips
Proper installation is key to keeping moisture out of the light fixture. Here are some tips for a reliable waterproof installation:
- Carefully read and follow the manufacturer’s instructions.
- Choose a location where the light will be protected from direct water spray if possible.
- Thoroughly clean and dry the mounting area to remove any soap scum or debris.
- Apply a bead of waterproof silicone caulk around the edge where the light meets the wall or ceiling.
- Ensure any gaskets or seals are properly in place before mounting the fixture.
- Use the recommended mounting hardware and tighten fully.
- Aim showerheads and body sprays away from the light location.
- Use plastic wire nuts and outdoor-rated sealing tape on any wire connections.
- Caulk around the wire entry point into the fixture to prevent leaks.
- Test for full waterproofing by spraying the installed light with water before finishing wall materials.
Hardwiring vs Battery-Powered
Hardwired lights need to have power run to the fixture location and be installed by a qualified electrician according to local building codes. Battery-powered LED lights simply mount to the wall or ceiling without wiring. They recharge via a waterproof charging port, lasting for hours per charge.
Hardwired lights provide permanent, maintenance-free operation. Battery lights are easier to install but will need the batteries replaced over time. Consider accessibility to the light location and available electrical wiring when deciding between battery or hardwired installation.
Caulking and Sealing the Fixture
Carefully sealing your shower light during installation is crucial for preventing leaks. Follow these caulking tips:
- Always use 100% waterproof silicone caulk, or another sealant made specifically for wet environments.
- Apply caulk in one steady, continuous bead without gaps or air pockets.
- Caulk all the way around the fixture base where it meets the wall or ceiling.
- Put a circular ring or “dam” of caulk around wire holes before inserting wires.
- Make sure the mounting location is clean and dry before caulking so the seal adheres.
- Use a plastic caulking tool or putty knife to smooth the caulk into a neat line.
- Let the caulk cure fully (typically 24-48 hours) before exposing to moisture.
- Apply painter’s tape along the edges for a clean caulk line. Remove before caulk dries.
Take the time to thoroughly caulk and seal lights during installation and you can feel confident your shower light will be protected from leaks.
Caulking Mistakes to Avoid
While a quality caulking job is important, there are some common mistakes that can lead to leaks and other problems down the road:
- Using the wrong caulk – Household or latex caulk will not hold up to shower moisture.
- Applying too little caulk – Gaps in the caulking bead can allow water intrusion.
- Smearing the caulk excessively – Neat lines result in better adhesion and sealing.
- Not allowing caulk to fully cure – Showering before the caulk has set can break the seal.
- Failing to caulk the entire fixture – Missing even a small section can lead to leaks.
- Applying caulk over dirty or soapy surfaces – This prevents proper bonding to the fixture and wall.
- Not sealing wire holes – Any penetration should be sealed with caulking or silicone grommets.
Maintaining and Repairing Shower Lights
Like any fixture in a wet environment, shower lights need occasional maintenance to keep everything sealed and in working order. Here are some care tips:
- Periodically inspect lights for any cracks, damage or wear to seals and caulking.
- Re-caulk whenever any gaps, cracks or leaks are found.
- Keep lights free of hard water deposits, soap scum and mildew.
- Clean lights only with mild, non-abrasive cleaners and a soft cloth.
- Avoid spraying cleaners directly on the fixture.
- Check for moisture inside pendant lights or globes and replace if water is getting in.
- Confirm waterproof gaskets and lenses are tight.
- Replace any worn or cracked lenses that compromise the seal.
One of the top reasons shower lights fail prematurely is due to moisture getting into the fixture. Keep seals maintained and repairs lights as soon as any dripping, moisture buildup or malfunction is noticed. This will ensure your shower light continues providing safe illumination for years before needing replacement.
Troubleshooting Leaks
If your shower light develops a leak, here are some troubleshooting tips:
- Turn off electrical power to the light at the circuit breaker before inspection.
- Determine where exactly the drip or moisture buildup is occurring.
- Carefully remove the fixture to check seals, gaskets and caulking for gaps or damage.
- Ensure wire connections are intact and properly sealed.
- Double check for cracks in lenses, the housing or deterioration of seals.
- Replace any faulty gaskets, seals or caulking as needed.
- Confirm the light housing is properly aligned and mounted squarely to the wall.
- Use RTV marine adhesive to create an additional seal if standard caulking fails.
- Inspect surrounding areas the leak could be coming from, like plumbing or tile.
Finding and sealing even the smallest leak or gap in the light fixture will restore its waterproof protection and prevent shorts or shocking.
| Shower Light Type | Pros | Cons |
|---|---|---|
| LED niche light | Low profile; discreet illumination; sealed and protected in the wall | Wiring and installation more complex; limited to certain shower wall types |
| LED globe | Easy to install; versatile lighting; simple globe replacement | Entire fixture not sealed; condensation can be an issue |
| Vaporproof light | Durable and completely sealed; mounts to wall or ceiling; broad lighting pattern | Bulkier than some options; susceptible to direct spray if not shielded properly |
| Waterproof LED panel | Low profile; provides uniform, diffuse light; highly waterproof | Surface mounting only; may lack stylistic interest |
This table compares different types of common shower light fixtures and summarizes their key pros and cons. Important factors to consider are lighting performance, ease of installation and maintenance, durability, waterproof rating, and visual appeal. Using this information, you can select the right shower light type for your bathroom, installation location, and budget.
Conclusion
Installing shower lighting is an easy upgrade that can make your bathroom safer and more appealing. Paying attention to waterproof ratings and proper sealing techniques allows you to install lights that will withstand the humid, wet environment with minimal issues. Hardwired or battery-powered options give flexibility based on your electrical access. Well-chosen LED or efficient fixture types give long-lasting illumination with low maintenance needs. With routine inspection and re-caulking when necessary, a waterproof shower light can provide many years of attractive, reliable lighting.