Spa & Portable Light Fixtures

Spa lights and portable pool lights do the same job as a full-size pool light, but in a smaller package and often in a very different installation. A spa light lives in a small niche in a hot, chemically aggressive body of water that gets turned on and off far more often than a pool. Portable and above-ground pool lights often mount through a return fitting or hang on the wall with no niche at all. Picking the right replacement depends on the fixture type, the voltage and how it is wired back to power.

This category covers spa light fixtures for in-ground spas, small-niche lights, above-ground and portable pool lights, and related spa and portable light assemblies from Pentair, Hayward, Jandy and others. Service techs buy these to replace burned-out or leaking spa lights. Above-ground pool owners buy portable lights as a straightforward way to light the water. Builders add matching spa lights to a pool lighting package so pool and spa colors sync.

How Spa and Portable Lights Work

In-ground spa lights. A sealed fixture with a lens, gasket and lamp or LED module sits in a small niche set into the spa wall. The cord runs through conduit to a deck box or junction box. The fixture is held in by a pilot screw at the top, and the extra cord coiled in the niche lets the light be lifted to the deck for service.
Above-ground pool lights. Many mount through or onto the wall return fitting, using the return flow opening to pass the light assembly, or attach to the pool wall without cutting a new hole. Others hang over the edge. They are usually low voltage and plug into a transformer.
Portable and floating lights. Battery or solar powered lights used for accent, with no permanent wiring. They are decorative and not a substitute for code-compliant pool lighting.
Color LED versions. Many spa lights come in white and color-changing LED models designed to sync with the pool lights from the same family when they share a circuit or automation control.

12 V vs 120 V

Pool and spa lights come in two common voltages, and the difference matters for safety, wiring and replacement.

12 V lights run from a listed pool and spa safety transformer with an isolated secondary. They are common on spas, above-ground lights and many newer installations. They are often preferred where people are close to the light, such as in a spa.
120 V lights run on line voltage and must be on a GFCI-protected circuit, per NEC Article 680. Many older in-ground pools and spas have 120 V lights.
Replace like for like unless the wiring is being changed by a licensed electrician. A 12 V light on a 120 V circuit will fail instantly, and a 120 V light on a 12 V transformer will barely glow.

Signs It's Time to Replace a Spa or Portable Light

Water inside the lens. A failed gasket or cracked lens lets water in. Turn off the circuit and have the fixture serviced or replaced. Do not keep using it.
GFCI trips when the light turns on, often from a leak in the fixture or cord. A licensed electrician should find the fault.
Burned-out lamp on an older incandescent or halogen fixture. Relamping is possible on many models, but upgrading to LED is common.
Color LED that will not change colors or will not sync with the pool lights even after a resync attempt.
Cracked, cloudy or faded lens, or corrosion on the face ring.
Cord damage such as cuts, cracked jacket or a cord too short to reach the deck.

How to Choose the Right Replacement

Identify voltage. Check the existing fixture label or the transformer. Choose a replacement in the same voltage.
Match niche type and size. Spa lights fit small niches. Confirm the brand compatibility of the niche, since fixtures are designed for specific niche styles, and adapters exist for some crossover installations.
Measure the cord length. The cord must reach from the niche, through the conduit, to the deck box or junction box with enough slack to service the light on the deck. Spa lights come in several cord lengths. Never splice a cord inside the conduit.
Choose color or white. To sync with existing color pool lights, match the same brand and family.
Above-ground mount style. Check whether the light mounts in the return fitting, on the wall or over the edge, and confirm compatibility with your pool wall and return size.
Check the transformer. For 12 V lights, confirm the transformer is pool and spa rated with enough wattage for every light it powers.

Light Type	Typical Voltage	Key Considerations
In-ground spa light (small niche)	12 V or 120 V	Niche compatibility, cord length, color family for sync
Above-ground return-mount light	Usually 12 V	Return fitting size, transformer included or separate
Above-ground wall or over-the-edge light	Usually 12 V	Mounting method, cord routing, transformer placement
Portable battery or solar light	Battery or solar	Accent only, not a replacement for wired lighting

Installation and Safety Tips

Use a licensed electrician for any wired pool or spa light. Underwater lighting is covered by NEC Article 680, including GFCI protection, transformer requirements, bonding and junction box placement.
Turn off the breaker and verify before removing a light from its niche.
Replace the gasket whenever the light is opened for relamping and follow the manufacturer's tightening instructions.
Test before reinstalling. Many manufacturers recommend submerging the fixture briefly to check for leaks before seating it in the niche. Do not run a light out of water longer than the instructions allow.
Coil the cord correctly in the niche so the light can be lifted to the deck later. Seat the pilot screw firmly and make sure it is bonded where required.
Above-ground lights must use the transformer supplied or specified by the manufacturer, placed at the distance from the pool the instructions require, plugged into a GFCI-protected outlet.

Shopping This Category at HVAC365

Spa and portable light fixtures at HVAC365 are brand-new with the full manufacturer warranty, and each product page lists voltage, cord length, niche compatibility and color options. In-stock items ship in 1-2 business days. If you are matching a spa light to existing color pool lights or are not sure which cord length to order, send us the existing model and conduit run and we will help you choose.

Frequently Asked Questions

Can I replace a 120 V spa light with a 12 V light?

Yes, but the circuit must be converted with a listed pool and spa transformer, and the work should be done by a licensed electrician to meet NEC Article 680. Do not install a 12 V light on an existing 120 V circuit.

How do I know what cord length to order?

Measure the conduit run from the niche to the deck box or junction box, then add enough length for a service loop in the niche and connections at the box. When in doubt, go longer. Cords cannot be spliced inside the conduit or niche.

Will a new spa light sync with my pool lights?

If it is from the same brand and color light family and is on the same circuit or automation control, it should. Different brands or older generations may not match.

Are above-ground pool lights safe?

When installed according to the manufacturer's instructions with the supplied transformer, placed at the required distance and plugged into a GFCI-protected outlet, they are designed for safe use. Do not modify the cord or transformer.

Can I run a spa light out of the water to test it?

Only briefly, and only if the manufacturer allows it. Many lights rely on water for cooling, and running them dry can damage the lens or LED module.

Why does water keep getting into my spa light?

A worn or improperly seated gasket, a cracked lens or a damaged cord seal are the usual causes. Spa water is hot and harsh on gaskets, so replace the gasket every time the light is opened.