4-PERSON FULL-SPECTRUM SAUNA
Amplify IV
For those who demand more of themselves, the enhanced Amplify IV full-spectrum sauna is hotter, faster, and more immersive. Our patented SoloCarbon® technology and optimized heat supports powerful detox, cardio, and recovery benefits in an intense experience.
Trusted by thousands of verified Sunlighten customers
Four layers of energy. One purposefully engineered sauna experience.
- The light therapy
Visible red + invisible near-infrared light deliver photobiomodulation (PBM), purposefully integrated throughout the sauna around how light reaches your body.
- The therapeutic infrared
Sunlighten's patented far infrared technology provides the foundational 99% emissive infrared energy at the heart of every session.
- The intense heat
Full-spectrum infrared adds greater heat intensity when you want it, reaching up to 77°C under appropriate conditions.
- The added infrared layer
Mineral-infused CELLIANT® fabric in the heater covers adds another layer of infrared energy to the experience.
Tour Amplify IV, our 4-person infrared sauna
The Amplify IV delivers:
- Space for up to four people
- The highest heat levels in the range
- Full-spectrum infrared with SoloCarbon® and halogen heaters
- An adjustable, removable bench for relaxation or movement
- Larger heater panels and a heat-tight double-pane door
- Dense infrared to support performance, recovery and longevity
Amplify IV product specs
Talk to a Sauna Consultant
Consult with a Sauna Consultant to get clear answers, personalised guidance, and help finding the right sauna for your goals, space, and budget.
Industry-leading infrared saunas
Setting the standard in light scienceWith 50 owned and pending patents, and with saunas endorsed by over 200 scientists, doctors and longevity experts, Sunlighten is a trusted brand across the globe.
Clinically informed, expert approvedSunlighten’s infrared light therapy is grounded in published research and expert perspectives, so you can choose with confidence.
Scientifically-verified, safe and cleanOur saunas are independently tested and third-party verified to emit less than 1 milligauss—well below the 10mG industry standard for “ultra-low” EMF exposure.
Purposefully designed to elevate your spaceBuilt from quality materials and patented technology, our saunas complement luxury interiors while offering the depth of an elite wellness tool.
Why experts trust Sunlighten
Dr. Mark Hyman, functional medicine doctor, bestselling author, and longevity expert, has trusted Sunlighten infrared saunas for over 20 years. Learn why he claims Sunlighten has the only saunas that deliver truly transformative results.
Frequently asked questions about the Amplify RED IV, our 4-person red light sauna
The difference 200,000+ others feel
Newsworthy Recognition
As pioneers in light science, we are committed to setting the highest standards of quality. Our innovative approach to wellness empowers people to feel their best and enjoy more of what they love. This dedication to excellence has earned us noteworthy recognition, which we are excited to share with you.
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