
Sunlighten
Sunlighten mPulse Believe
Best for The most capable app-driven full-spectrum infrared
- Type
- Full-spectrum (3-in-1)
- Max temperature
- ~170 °F
- Capacity
- 1–2 persons

The reference full-spectrum infrared sauna. It combines near, mid and far infrared with a genuine lifetime residential warranty, and most 1–2 person configurations run on a standard outlet.
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Clearlight's Sanctuary 2 is what many buyers benchmark other infrared saunas against. It pairs the brand's low-EMF True Wave carbon-ceramic heaters with added near-infrared LEDs for true full-spectrum output, in a furniture-grade cedar or eco-certified basswood cabin. Independent and editorial reviews put its top temperature in the 125–145°F range — infrared runs cooler than traditional by design.
The standout is the lifetime residential warranty, well beyond the 5–7 years most rivals offer. Electrical requirements vary by configuration and source (Clearlight markets 120V operation for smaller cabins, while some larger builds use 240V), so confirm your exact model before installing. For indoor full-spectrum infrared with the best warranty in the category, it remains the safe premium pick.
Installation
Indoor; assembles in a few hours. Confirm 120V vs 240V for your config.
Electrical
120V / 20A (some configs 240V)
Running cost
Approx. $15–25/month with regular use
Warranty
Lifetime residential
Maintenance
Wipe-down; occasional wood treatment.
Returns
30-day satisfaction guarantee
See this product side by side with its closest rivals.
The manufacturer documentation, independent reviews and retailer listings this review draws on, with the date each was last checked.

Sunlighten
Best for The most capable app-driven full-spectrum infrared

Clearlight
Best for Best-value indoor infrared from a trusted brand

Sun Home Saunas
Best for Value full-spectrum infrared with a fast warm-up