What Is a Full-Spectrum Infrared Sauna?
A full-spectrum infrared sauna uses heaters that emit all three ranges of the infrared spectrum — near infrared (NIR), mid infrared (MIR), and far infrared (FIR) — in a single session. Most budget and mid-range infrared saunas emit only far infrared. Full-spectrum saunas deliver a broader range of wavelengths, each targeting different depths and functions in the body.
The term "full-spectrum" refers specifically to infrared light coverage — not the visible light spectrum. A full-spectrum infrared sauna combines shorter-wave near infrared with longer-wave far infrared, giving you access to benefits that single-spectrum saunas cannot deliver on their own.
Near, Mid, and Far Infrared: What Each Wavelength Does
- Near infrared (NIR, 700–1400 nm): Penetrates the skin's surface to support cell renewal, wound healing, and collagen production. This is the same wavelength range used in clinical photobiomodulation therapy.
- Mid infrared (MIR, 1400–3000 nm): Reaches deeper into soft tissue to improve circulation, reduce joint stiffness, and aid in pain relief.
- Far infrared (FIR, 3000 nm–1 mm): Penetrates 1.5–2 inches into the body for deep-core heating, promoting detoxification through sweat, muscle recovery, and cardiovascular benefits. Far infrared is the most studied wavelength for sauna therapy.
A full-spectrum sauna combines all three in every session. A far-infrared-only sauna delivers deep heating but misses the near and mid infrared benefits.
Full-Spectrum vs. Far Infrared: How to Choose
Full-Spectrum Infrared
- Wavelengths: Near + mid + far infrared combined
- Depth: Surface-level cell renewal through deep-tissue heating
- Best for: Comprehensive wellness — recovery, skin health, detox, and circulation in one session
- Sun Home models: Equinox (2P, 3P), Eclipse (2P, 4P), Luminar (2P, 5P)
Far Infrared Only
- Wavelengths: Far infrared only (3000 nm–1 mm)
- Depth: Deep-core heating (1.5–2 inches penetration)
- Best for: Deep detoxification, muscle recovery, cardiovascular support
- Sun Home models: Solstice (1P, 2P, 3P, 4P)
The Eclipse line adds another dimension: integrated red light therapy LEDs (630–850 nm wavelengths) alongside full-spectrum infrared, delivering multi-therapy sessions that combine infrared heat with photobiomodulation in a single cabin.
Sun Home Full-Spectrum Infrared Sauna Models
Equinox Line (Indoor, Full-Spectrum)
The Equinox 2-Person and 3-Person saunas use True Wave™ full-spectrum infrared heaters in hand-selected, kiln-dried eucalyptus cabins. Both run on 120V with a 20A dedicated circuit (NEMA 5-20P plug). EMF levels are independently tested at 0.3–0.5 mG by Vitatech Electromagnetics. ETL and ETL-C certified. Backed by a 7-year residential warranty on cabinetry and heaters, 3 years on controls.
Eclipse Line (Indoor, Full-Spectrum + Red Light)
The Eclipse 2-Person and 4-Person combine full-spectrum infrared with integrated red light therapy LEDs for multi-therapy sessions. Built with Canadian Red Cedar interiors and patented EMF/ELF shielding (0.5 mG). The Eclipse 2P has 8 heaters (6 far-infrared + 2 full-spectrum) producing 2,820W total power and reaching 165°F. The Eclipse 2P runs on 120V; the Eclipse 4P requires 240V — a licensed electrician is recommended. Both require a 20A dedicated circuit. Backed by a Lifetime Limited Warranty.
Luminar Line (Outdoor, Full-Spectrum)
The Luminar 2-Person and 5-Person outdoor saunas pair a Canadian Red Cedar interior with an aerospace-grade aluminum exterior shell for year-round durability in any climate. Both reach temperatures up to 170°F — the highest in Sun Home's lineup. Both require 240V with a 20A dedicated circuit; a licensed electrician is recommended. A red light therapy panel is available as an add-on. Backed by a Lifetime Limited Warranty.
Full-Spectrum Infrared Saunas at a Glance
Sun Home Eclipse™ 2-Person Red Light & Infrared Sauna
$10,599
$10,399
The Sun Home Eclipse 2-Person Sauna combines far infrared and full-spectrum infrared heating with built-in red light therapy towers (630-850nm wavelengths) for a comprehensive wellness experience. Constructed from premium Canadian...
Sun Home Eclipse™ 4-Person Red Light & Infrared Sauna
$13,599
$13,399
The Sun Home Eclipse 4-Person Sauna is a spacious wellness retreat combining far infrared, full-spectrum infrared, and red light therapy in a single unit. Built from Canadian Red Cedar, it...
Sun Home Equinox™ 2-Person Full-Spectrum Infrared Sauna
$6,799
$6,399
With superior craftsmanship and unparalleled innovation, the Sun Home Equinox™ sauna leads the industry in terms of safety and effectiveness. The advanced True Wave™ full-spectrum heating system supplies all beneficial...
Sun Home Equinox™ 3-Person Full-Spectrum Infrared Sauna
$7,699
$7,299
With superior craftsmanship and unparalleled innovation, the Sun Home Equinox™ sauna leads the industry in terms of safety and effectiveness. The advanced True Wave™ full-spectrum heating system supplies all beneficial...
Safety, EMF, and Technical Specs
EMF and Safety Certifications
All Sun Home infrared saunas are independently tested by Vitatech Electromagnetics at 0.3–0.5 mG at seated distance — among the lowest in the industry. The Eclipse line features patented EMF/ELF shielding technology. The Equinox and Solstice lines are ETL and ETL-C certified, confirming compliance with North American electrical safety standards.
Electrical Requirements
All models require a 20A dedicated circuit — not a standard household 15A outlet. The Equinox (2P, 3P) runs on 120V (NEMA 5-20P plug). The Eclipse 2P runs on 120V with a NEMA L5-30P dedicated outlet. The Eclipse 4P and all Luminar models require 240V — a licensed electrician is recommended for 240V installations.
Construction and Assembly
Sun Home saunas use a tool-free Magne-Seal™ panel-locking system — panels snap together without power tools, nails, or clips. Assembly typically takes 30–60 minutes with two people. All panels are kiln-dried and air-dried to 7% moisture content using only ultra-low-VOC adhesives and non-toxic wood treatments.
