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
Engineered around how energy reaches your body
- Red and near-infrared light, integrated throughout the sauna
Photobiomodulation (PBM) uses both visible red and invisible near-infrared light. We’ve integrated both throughout the sauna, with placement engineered for how your body receives light.
- Purposeful infrared, layer by layer
Therapeutic far-infrared and full-spectrum heat each play a distinct role, while refined temperature control, thick insulation and double-pane glass help retain heat up to 170°F *. Layer the experience your way.
- Not maximum light. The right light
With PBM, wavelength, distance and dose matter not just raw power. Amplify RED’s red + NIR system is designed around these principles, informing where the light is placed and how it reaches your body.
- Safe, industry-leading technology
At its foundation is Sunlighten’s patented far-infrared technology, engineered for 99% emissivity and ultra-low EMF.
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 IV, our 4-person sauna
Experience infrared from the global leaders in light science
Sunlighten is the whole-body longevity tool trusted by over 200 wellness experts and thousands of longevity optimizers, biohackers and health enthusiasts.
37 clinical studies and third-party testing supporting detox, heart health, recovery, and more- Proven, near-perfect emissivity that delivers 95-99% of therapeutic infrared wavelengths
- Integrated red and near-infrared photobiomodulation (PBM), engineered around wavelength, placement, and dose, not simply added to the cabin
- 30+ patents shaping the future of light and infrared innovation
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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