How to Fit Waterproof LED Lights in Your Hot Tub?

There’s a reason evening soaks feel so much more luxurious than daytime ones the right lighting transforms your inflatable hot tub from a backyard accessory into a genuine retreat. But installing lights in or around a body of warm water isn’t something to approach casually. Water and electricity demand careful planning, the right products, and precise installation.

At Relxtime, we get asked constantly about inflatable hot tub lighting what’s safe, what looks great, and how to do it properly. This complete guide covers every option available, from waterproof LED strip lights installation to floating LEDs and factory-fitted systems, so you can light up your spa safely and beautifully.

Are Waterproof LED Lights Safe for Hot Tubs?

Before touching a single wire, let’s address the most important question: are waterproof LED lights safe for hot tubs?

Yes but only when you use the right type, installed correctly. The key factors are:

IP Rating The Most Important Specification

Every waterproof light carries an IP (Ingress Protection) rating that tells you how well it resists water. For hot tub use, nothing lower than IP67 should be considered, and IP68 is the gold standard.

Always check for IP68 certification on any LED product you plan to install inside or in direct contact with hot tub water.

Low Voltage Is Non-Negotiable

Mains voltage (120V in Canada) and water are a fatal combination. All lighting installed inside or directly around your hot tub must operate on 12V DC low voltage systems. Most quality LED hot tub lights are designed for exactly this they use a transformer to step down from mains voltage to a safe low-voltage output before the light ever gets near the water.

Heat Resistance

Hot tub water regularly sits between 37°C and 40°C. Ensure your chosen LED lights are rated for this temperature range. Look for thermal regulated LED lights that won’t degrade or discolour in sustained warm water exposure.

Types of LED Lights for Inflatable Hot Tubs ?

Understanding your options before purchasing saves money and avoids compatibility problems.

Waterproof LED Strip Lights

Waterproof LED strip lights are the most versatile option for inflatable hot tub lighting. They come on a flexible adhesive-backed tape that can be shaped around the interior rim or exterior of your tub.

• Best used: along the interior top rim or the exterior base perimeter
• Look for: IP68 rating, 12V DC, silicone-encased strips
• Avoid: any strip light without full silicone encapsulation exposed circuit boards corrode rapidly in humid spa environments

Floating LED Lights

Floating LED lights for hot tub setups are the easiest installation option literally no tools required. These waterproof orbs or discs float on the water surface and are powered by rechargeable batteries.

• Best used: directly in the water for ambient colour
• Look for: IP68 rating, magnetic or USB charging, colour-changing RGB modes
• Avoid: models with exposed charging ports or poor sealing around the battery compartment

Remote Control LED Lights

Remote control LED lights for hot tubs add convenience change colour modes, dimming levels, and lighting effects from inside the tub without touching a switch. Most quality RGB LED strips and floating lights now include wireless remotes or smartphone app control.

Factory Installed / Built-In Spa Lighting

Some Relxtime inflatable hot tub models come with a built-in spa lighting system integrated LED lights designed specifically for the tub, pre-wired and tested at the factory. This is the safest and most seamless option because the factory installed LED lights are calibrated for your specific model’s voltage and water exposure levels.

If your Relxtime model includes an integrated LED hot tub system, always use the manufacturer’s setup process rather than adding third-party lighting inside the tub.

Tools and Materials You’ll Need

For a waterproof LED strip lights installation around your inflatable hot tub, gather the following before starting:

• IP68-rated 12V LED strip lights (RGB or single colour)
• 12V DC low-voltage transformer/driver
• Waterproof cable connectors (IP68 rated)
• Isopropyl alcohol and clean cloth (surface prep)
• Scissors (for cutting strip lights at designated cut points only)
• Waterproof silicone sealant (optional but recommended at all connection points)
• Cable clips or adhesive mounts for routing cables
• Voltage tester (to confirm low-voltage output before connecting)

How to Install Waterproof LED Strip Lights in an Inflatable Hot Tub?

Follow this step-by-step process for a safe, clean inflatable hot tub lighting installation.

Plan Your Layout

Before cutting or sticking anything, plan where your lights will run. The most popular and safest position for strip lights on an inflatable hot tub is the interior upper rim the flat ledge area above the waterline. This position delivers beautiful ambient light that reflects off the water without submerging the lights themselves.

For exterior lighting, the base perimeter creates a striking ground-glow effect and also improves hot tub safety at night by illuminating the area around the tub.

Measure your planned run and confirm your strip light roll is long enough. Account for corners and curves in your measurement.

Clean and Dry the Surface

LED strip lights rely on adhesive backing that fails on damp, dirty, or textured surfaces. Clean your installation surface thoroughly:

• Wipe with isopropyl alcohol on a clean cloth
• Allow to dry completely at least 10–15 minutes
• For exterior use, ensure the surface is fully dry and at room temperature or above

This step is critical. Adhesive failure on a wet surface is the leading cause of LED strip light installation problems on inflatable hot tubs.

Connect and Test Before Installing

Never stick your lights down before testing them. Connect your LED strip to the transformer and power it up first:

• Confirm the transformer output is 12V DC using a voltage tester
• Check every section of the strip lights up evenly with no dead zones
• Test all colour modes and the remote control function if applicable
• Inspect all connection points they should be dry, firm, and properly insulated

Once everything works correctly, power off and disconnect before installation.

Cut Strips to Length (If Needed)

If your strip is too long, cut it only at the designated cut marks typically indicated by a scissor icon or a solid line printed on the strip every 5–10 cm. Cutting at any other point permanently damages the circuit and voids most warranties.

After cutting, seal the cut end with waterproof silicone sealant or a waterproof end cap to prevent moisture ingress at the exposed circuit point.

Attach the LED Strip Lights

Peel the adhesive backing and press the strip firmly along your planned route:

• Apply firm, even pressure along the entire length don’t just press at the ends
• Work slowly around curves force or sharp bends crack the circuit board inside the strip
• For inflatable hot tub surfaces (PVC/vinyl), the adhesive bond may need reinforcement with waterproof adhesive clips or cable ties, as vinyl can be slightly flexible under the weight of water

Route and Secure All Cables

Loose cables are a tripping hazard and a water ingress risk. Route all cables:

• Away from water pathways
• Secured with waterproof adhesive cable clips every 20–30 cm
• Over the tub rim (not through the water) to reach the transformer
• Toward the transformer which must be positioned away from the water ideally at least 1 metre from the tub edge and sheltered from rain

Seal All Connection Points

Apply a small amount of waterproof silicone sealant around every cable connection point, especially where cables pass over the tub rim or enter connector housings. This prevents humid spa air from condensing inside connectors and causing corrosion over time.

Allow sealant to cure fully (typically 24 hours) before powering on.

Final Power-On and Safety Check

With everything installed and sealed, perform a final check:

• Confirm the transformer is dry and positioned safely away from splash zones
• Confirm no cables are submerged or trailing in the water
• Power on and test all functions colour, dimming, remote response
• Check for any flicker or uneven lighting that might indicate a poor connection

How to Set Up Floating LED Lights for Hot Tubs?

For those who prefer no tool installation hot tub lights, floating LEDs are the answer. Setup takes under two minutes:

1. Charge the floating light fully via its USB or magnetic charging port before first use
2. Confirm the charging port and battery compartment seal is fully closed and locked
3. Place the light on the water surface and power on via the button or remote
4. Retrieve lights after each soak, dry them, and recharge before next use do not leave battery-powered lights floating in the water for extended periods when the tub is not in use

How to Prevent Water Damage to LED Lights?

Even properly installed lights need ongoing care. Here’s how to protect your investment:

• Remove floating lights after every session and store them dry
• Inspect strip light adhesion monthly re-secure any lifting sections before water gets underneath
• Check all cable connections seasonally for corrosion or discolouration
• Drain and dry the tub area before performing any maintenance on fixed lights
• Never power lights while performing chemical treatments turn off all lighting before adding chlorine, bromine, or pH adjusters to the water
• Store lights indoors during Canadian winter if the tub is being stored cold temperatures can crack silicone seals and degrade adhesive

Night Safety Benefits of Hot Tub Lighting

Good spa lighting for safety does more than create atmosphere. In Canada’s long dark winters, proper lighting around your hot tub is genuinely important for accident prevention:

• Night visibility around the tub edge prevents missteps getting in and out
• Perimeter lighting at the base illuminates the ground to prevent slips around the hot tub
• Interior lighting helps users see the steps and water depth clearly
• Motion-activated pathway lights from the house to the tub are a worthwhile addition for winter evening soaks

Conclusion

Installing waterproof LED lights in your inflatable hot tub elevates your entire outdoor spa experience but it must be done safely. Always choose IP68-rated, low-voltage LED lighting, test before installing, seal all connections, and keep all transformers and power sources well away from the water.

Whether you choose waterproof LED strip lights, floating LED lights, or a Relxtime model with a factory-integrated lighting system, the result is the same a beautifully lit, safe, and inviting backyard spa you’ll want to use every evening. Light it right, and your hot tub becomes the centrepiece of your Canadian outdoor living space.

Frequently Asked Questions?

Here are some frequently asked questions given below:

Are waterproof LED lights safe to use inside an inflatable hot tub?

Yes, provided you use IP68-rated, 12V DC low-voltage LED lights designed specifically for water submersion. Never use mains voltage lighting anywhere near hot tub water. Always verify the IP68 rating and low-voltage specification before purchasing any hot tub lighting product.

What is the best way to attach LED lights inside an inflatable hot tub?

The safest and most popular position is along the interior upper rim, above the waterline. Clean the surface with isopropyl alcohol before applying adhesive-backed strip lights, and reinforce with waterproof cable clips on flexible vinyl surfaces. Always test lights fully before final installation.

How do I prevent water damage to LED strip lights in my hot tub?

Use only IP68-rated silicone-encased strip lights, seal all connection points with waterproof silicone sealant, route cables away from water, and inspect adhesion and connections monthly. Remove and store floating lights after each session and always power off lighting before adding chemicals to the water.

Can I use floating LED lights in my inflatable hot tub?

Yes floating LED lights are one of the safest and easiest lighting options for inflatable hot tubs. They require no installation, no cables, and no tools. Ensure they carry an IP68 rating, charge them fully before use, and always retrieve and dry them after each soak.

Do Relxtime inflatable hot tubs come with built-in LED lights?

Some Relxtime models include a factory-integrated LED lighting system designed and tested specifically for that model. If your tub includes built-in lighting, always follow the manufacturer’s setup instructions rather than adding third-party internal lighting, as the factory system is calibrated for your tub’s specific voltage and water exposure requirements