Product Description

CMP 5 Inch Light Kit 25241-350-100 SQR QCA
Light up your soak with a genuine CMP SQR spa light kit — the simple, reliable replacement built for QCA Spas and other leading hot tub brands.
[Shop and order at Western Tub and Pool]
Why hot tub owners choose this light kit
Your spa's light kit does more than look pretty after dark — it's a sealed, safety-rated fixture that has to stand up to constant water exposure. When it fails or fogs up, replacing it with the exact factory part matters. Here's what makes the CMP 25241-350-100 a smart pick:
- Complete kit, ready to install: Includes the lens, reflector, bulb, and wiring harness — everything you need, nothing extra to source.
- Clear lens design: Delivers a bright, clean glow that highlights your spa's water at night.
- CMP's SQR sealing system: No gaskets, glue, silicone, or wingnuts required. The lens pushes directly into a polymer grommet for a tight radial seal, so installation is fast and leaks are far less likely.
- 5-inch diameter fixture: Fits a standard 3 ¾ inch mounting hole.
- Backed by a manufacturer's limited warranty: Buy with confidence knowing this part is built to CMP's quality standard.
Hot tubs and models that use this light kit
This CMP SQR 5 inch light kit is used across QCA Spas' full model lineup, as well as select other hot tub brands. If your spa falls into one of the series below, this part is worth checking against your current light fixture:
- Dream Series: Dream Star, Riviera, Stargazer, Mystic
- Star Series: Scorpio and other Star Series plug-and-play models
- Performance Series: Standard performance models without air blowers
- Jewel Series: Amethyst, Ruby, Topaz, Moonstone, Moonstone Deluxe
- Majestic Series: St. Maarten, Grand Bahama, Grand Cayman, Tuscan River Falls
- Paradise Series: Models featuring the Ultra Wave Lounger and Wave Max Seat
Not seeing your exact model? Spa manufacturers often update pillows, panels, and light fixtures over time — even within the same model name. Don't guess. Check your part number or send us a photo, and we'll confirm the fit.
Compatible controls
This light kit commonly pairs with spa packs and control systems, including:
- Balboa-based systems (including Dream Star and Q2000 spa packs)
- Gecko-based systems (including Wave Max configurations)
- Various QCA topside control panels
Cross-reference numbers
- Part Number: 25241-350-100
- Manufacturer Part Number (MPN): 25241-000-100
Dimensions
- Fixture diameter: 5 inches
- Mounting hole size required: 3 ¾ inches
Related replacement parts
Since your light kit is part of a bigger lighting system, it's worth checking these related CMP components too:
- 25241-350-000 – SQR 5" Spa Light (Lens, Reflector only); Clear
- 25241-352-000 – SQR 5" Spa Light (Lens, Reflector only); Clear/Stainless Steel
- 25241-352-100 – SQR 5" Spa Light Kit (Lens, Reflector, Bulb, Harness); Clear/Stainless Steel
- 25241-350-001 – SQR Replacement Grommet (White), for 5" Spa Light
- 25241-330-100 – SQR 3" Spa Light Kit (Lens, Reflector, Bulb, Harness); Clear
Check our full online catalogue for these and other CMP lighting parts, or call us and we'll help you track down the right fit.
Frequently asked questions
How do I know if this light kit fits my hot tub?
Measure your existing light fixture — it should be 5 inches in diameter with a 3 ¾ inch mounting hole. If you're not sure, send us your spa's make, model, and serial number (or a photo of the current light) and we'll confirm the match for you.
Does this kit include everything I need to install it?
Yes. The 25241-350-100 kit includes the lens, reflector, bulb, and wiring harness. Thanks to CMP's SQR sealing system, no gaskets, glue, or silicone are needed for installation.
What's the difference between this kit and the 25241-350-000?
The 25241-350-100 is the complete kit, including the bulb and wiring harness. The 25241-350-000 includes only the lens and reflector, so it's best if you're replacing a cracked lens but keeping your existing bulb and wiring.
My hot tub isn't a QCA Spa. Will this part still fit?
This SQR-style light kit is used across several hot tub brands, not just QCA Spas. Send us your hot tub's make and model and we'll verify compatibility before you order.
What if I can't find my part number?
No problem. Email us a picture of the part, along with your hot tub's make, model, and serial number if available, and our team will identify the correct replacement for you.
Can't find the part you need?
Some hot tub parts are notoriously hard to track down — especially on older or discontinued models. If that's you, send us an email at fixmytub@gmail.com and we'll help you locate it.
As an international e-retailer, Western Tub and Pool stocks parts across multiple regional warehouses, which can affect shipping times and availability. To keep things clear, we mark each part's origin with a suffix:
- U – USA
- C – Canada
- E – Europe
- A – Asia
Note that some parts may be duplicated across regions under different suffixes. If you already know your part number, double-check the suffix before ordering. If you're not sure, send us a picture along with your hot tub's make, model, and serial number, and we'll match you with the correct part.
Shop and order at Western Tub and Pool
[Shop and order at Western Tub and Pool]
Questions? Call us at 1-855-248-0777 or email fixmytub@gmail.com.
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