Home / Head to head / Clearlight Sanctuary 2 Full-Spectrum Infrared Sauna vs Sunlighten Signature II Infrared Sauna Head to head
Clearlight Sanctuary 2 Full-Spectrum Infrared Sauna vs Sunlighten Signature II Infrared Sauna Both models appear in our Best Infrared Saunas of 2026 comparison. This page sets their published specs side by side.
We have not tested these products hands-on. Everything here comes from manufacturer specifications and merchant listings, last checked Sep 8, 2026. Price buttons are affiliate links, and we may earn a commission at no extra cost to you.Affiliate disclosure
Key differences In our Best Infrared Saunas of 2026 comparison, the Clearlight Sanctuary 2 Full-Spectrum Infrared Sauna is the Best Overall pick. Side by side "Not published" means our data has no figure from the maker or merchant. Warranty entries are what the listing said; check the maker's terms before you buy.
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Clearlight Clearlight Sanctuary 2 Full-Spectrum Infrared Sauna Sunlighten Sunlighten Signature II Infrared Sauna Price Contact for Pricing Checked Sep 8, 2026 See price on Amazon Checked Sep 8, 2026 Who it fits 2 adults 2 people Dimensions Interior 46.5"W x 44.25"D x 72.5"H; exterior 51.75"x47.75"x77"; bench 46.5"x21.75" Exterior 50.9"W x 45.9"D x 77.7"H; interior 45.4"x39.9"x70.3"; 28" door opening Power 120V/20A outlet (NEMA 5-20p plug) — no electrician required Standard 120V/20A dedicated circuit Placement Indoor Indoor Installation needs Indoor installation; plugs into a standard 120V/20A outlet Indoor installation; runs on a standard 120V/20A household circuit Warranty (as listed) Limited Lifetime warranty for the original owner Not published Heater Type True Wave Full Spectrum: two 500W front-wall emitters plus far-infrared on back, side, and floor SoloCarbon far-infrared heaters Cabin Material Mahogany or Basswood Eucalyptus wood (basswood option also available) Interior Dimensions 46.5"W x 44.25"D x 72.5"H Not published Weight 450 lbs 438 lbs (basswood) / 522 lbs (eucalyptus) Check price Check Price Check Price on Amazon
What each one offers Price buttons are affiliate links. We may earn a commission at no extra cost to you.Affiliate disclosure
Illustrative photo Best Overall
A 2-person full-spectrum infrared cabin with True Wave heaters, a limited-lifetime warranty, and plug-and-play 120V/20A installation.
Why we labeled it: Full-spectrum heaters, a written limited lifetime warranty, and a 120V/20A plug, all stated on the manufacturer's page.
May suit: Buyers who want full-spectrum coverage without an electrical upgrade; Anyone prioritizing a long, explicit warranty
In its favor
Limited Lifetime warranty for the original owner No dedicated high-amp circuit — standard 120V/20A outlet Full-spectrum heater coverage (near, mid, and far-infrared) Against it
Price is not published — requires a consultation for a quote Heavy at 450 lbs, which complicates DIY placement Illustrative photo A 2-person far-infrared cabin built around Sunlighten's SoloCarbon heaters, running on a standard 120V household circuit.
Why we labeled it: An established far-infrared brand with SoloCarbon heaters and chromotherapy, a strong choice if you don't need full spectrum.
May suit: Buyers who want a well-known infrared brand; Homes without a high-amp electrical upgrade
In its favor
Heaters described by Sunlighten as low-EMF (no reading in our data) Chromotherapy lighting included No dedicated high-amp circuit required (120V/20A) Against it
Price is not published — requires contacting Sunlighten or a dealer for a quote No publicly listed warranty terms found on the manufacturer page More head-to-head matchups 
