Last updated: October 2026
Sunlighten vs. Clearlight: Which Infrared Sauna Should You Buy?
The two biggest names in home infrared, compared on what actually matters: heater technology, EMF data, warranties, prices, and support. No fluff — just the differences that should drive your decision.
Sunlighten
Building infrared saunas since 1999 — the longest track record in the category. Known for Solocarbon far-infrared heaters with independently tested low EMF, the smart mPulse full-spectrum line, and a 7-year heater/cabinetry warranty on the Signature series.
Flagship: mPulse (from $9,000+) · Core line: Signature (from $5,499)
Clearlight
True full-spectrum infrared backed by the Jacuzzi dealer network — meaning showrooms, local dealers, and service infrastructure. Competes hardest on value: full-spectrum cabins starting thousands below Sunlighten's flagship pricing.
Flagship: Sanctuary (full-spectrum) · 2-person from: ~$3,400
Head-to-Head Comparison
| Category | Sunlighten | Clearlight | Edge |
|---|---|---|---|
| Heater technology | Solocarbon far-infrared (Signature); full-spectrum near/mid/far (mPulse) | True full-spectrum infrared (Sanctuary) | Tie — both offer full-spectrum at the top end |
| EMF transparency | Under 1 mG, independently tested by VitaTech (published) | Low-EMF claims; less published third-party data | Sunlighten |
| Warranty | 7 years heaters & cabinetry, 3 years controls (Signature) | Check current terms with dealer | Sunlighten (on published terms) |
| Smart features | mPulse app-driven programs, chromotherapy, Bluetooth | More traditional controls; fewer smart features | Sunlighten |
| Price (2-person full-spectrum) | mPulse from $9,000+ | Sanctuary 2-person from ~$3,400 | Clearlight (by thousands) |
| Support network | Direct + established service | Jacuzzi dealer network — showrooms & local service | Clearlight (for in-person buyers) |
| Brand history | Since 1999 — the category pioneer | Established, Jacuzzi-backed | Sunlighten |
| Financing | 0% APR via Affirm; HSA/FSA eligible | Check with dealer | Sunlighten (on published options) |
The Detailed Breakdown
Heater technology
Both brands' flagships deliver genuine full-spectrum infrared — near, mid, and far bands. Sunlighten splits its lineup: the mPulse goes full-spectrum with app-driven programs, while the Signature sticks to far-infrared with Solocarbon heaters. Clearlight's Sanctuary line is full-spectrum across the board. If you want every wavelength, both deliver; the question is what you pay for it.
EMF: the transparency gap
This is Sunlighten's clearest documented advantage. Its Signature line is independently tested by VitaTech at under 1 mG — published numbers, not marketing copy. Clearlight makes low-EMF claims but publishes less third-party test data. If EMF is a priority for you, Sunlighten is the evidence-backed choice.
Price: Clearlight's killing field
A 2-person Clearlight Sanctuary starts around $3,400. A comparable full-spectrum Sunlighten mPulse starts around $9,000. That's a ~$5,600 gap for the same spectrum coverage. Clearlight doesn't win on features here — it wins on the invoice.
Warranties and support
Sunlighten's published 7-year heater and cabinetry warranty (Signature) is the benchmark. Clearlight counters with the Jacuzzi dealer network — if you value walking into a showroom and having local service, that's a genuine advantage no spec sheet captures.
Our Verdict
Buy Sunlighten if you want the smartest sauna (mPulse), the best-documented low EMF, and the longest brand track record — and your budget reaches $5,500–$9,000+.
Buy Clearlight if you want full-spectrum infrared for thousands less, value the Jacuzzi dealer network, and don't need app-driven programs.
The one-line version: Sunlighten wins on technology and evidence; Clearlight wins on value. Most buyers will be happier with the money they save going Clearlight — unless smart features or verified EMF data top their list.
Sunlighten vs Clearlight FAQs
Is Sunlighten better than Clearlight?
Neither is objectively "better" — they win different categories. Sunlighten leads on smart features, published EMF data, and brand history. Clearlight leads on price (thousands less for full-spectrum) and dealer-network support. Match the winner to your priorities.
Why is the Sunlighten mPulse so much more expensive?
The mPulse is Sunlighten's smart flagship: app-driven programs, full-spectrum heaters, and premium positioning from the category's oldest brand. You're paying for technology, R&D, and brand — whether that's worth $5,000+ over Clearlight depends on how much you value the smart features.
Which has lower EMF?
Sunlighten publishes independent VitaTech test data showing under 1 mG for its Signature line. Clearlight claims low EMF but publishes less third-party data. On evidence alone, Sunlighten.
Can I see these saunas in person before buying?
Clearlight has the edge here through the Jacuzzi dealer network — many buyers can visit a showroom. Sunlighten sells primarily direct; check their site for any showroom or partner locations near you.