Amplify III - Eucalyptus - V1

Room to stretch out solo or share the heat with up to two others, in the hottest sauna we make.

£10,499.00 Save £2,500
£7,999.00 Free delivery

SAUNA SIZE

RED LIGHT

With Integrated Red Light
Without Red Light

Not sure which sauna fits your space?

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Hotter, faster, built for three.

Amplify III is spacious enough for stretching out alone or sharing the experience with up to two others, and it pairs higher intensity heat with full-spectrum infrared, backed by the comfort, credibility, and innovation you expect from the leaders in light science. Patented SoloCarbon® heaters deliver a high quantity and quality of infrared energy for deep absorption, while additional halogen heaters intensify the heat around you.

Larger heater panels, refined system logic, and heat-tight double-pane doors work together so nothing gets lost. It promises productivity. Stay on schedule with a quick warm-up, stay ahead of your game with intense heat, and sweat deep. Supports performance, recovery, and longevity.

7-year warranty*

Built to last

Free UK shipping

EU shipping varies by destination

Optional paid installation

Arranged after purchase · priced by zone

Specifications and dimensions

  • Hard-wired to a dedicated isolator. A qualified electrician must assess your supply, prepare it before installation and make the final connection.
  • Exterior height includes 51 mm feet
  • 711 mm door swing
Specifications and dimensions
Door swing711 mm
Feet included in exterior height51 mm
Exterior width 1,583 mm
Exterior depth 1,167 mm
Exterior height 1,973 mm
Interior width 1,442 mm
Interior depth 1,014 mm
Interior height 1,785 mm
Bench width 1,438 mm
Bench depth 514 mm
Bench height 125 mm
Eucalyptus weight 317 kg
Heaters 7 FIR, 3 FS. No floor heater.
Electrical 230V · 3013W · 13.1A
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WHAT TO EXPECT

Delivery, assembly & installation

Order with kerbside delivery. Choose DIY assembly or arrange paid installation separately after purchase.

01

Order with kerbside delivery

Your sauna order includes kerbside delivery. UK delivery is free; EU delivery charges vary by destination. Plan how you will move the sauna from the kerbside to its final location.

02

Arrange installation after purchase

Installation is an optional paid service, arranged separately after you place your order. Contact our team after purchase to discuss availability and pricing for your installation zone.

03

Prefer DIY assembly?

Follow the assembly guide for your sauna model and check access and electrical requirements before delivery. Amplify III and IV must be hard-wired to a dedicated isolator by a qualified electrician.

Download your model's UK assembly guide (PDF)

50,000+ REVIEWS

Backed by science.

Trusted by wellness experts.

CUSTOMER REVIEWS

Don't just take it from us

Find your fit

Compare sauna collections

mPulse® Sauna

mPulse® Sauna

Priced by configuration

Best for precision-controlled sessions for personalized, targeted results.

  • Capacity 1-5 people options
  • Red Light Therapy Yes
  • Wavelength
    • RED
    • NEAR
    • MID
    • FAR
  • Finishing Eucalyptus, Basswood
  • Electrical 230V — check model specifications

YOU'RE VIEWING

Amplify® Sauna

Amplify® Sauna

£7,999.00

Best for high-heat sessions that deliver a deeper, faster sweat.

  • Capacity 2-4 people options
  • Red Light Therapy No
  • Wavelength
    • RED
    • NEAR
    • MID
    • FAR
  • Finishing Eucalyptus
  • Electrical 230V — check model specifications
Signature® Sauna

Signature® Sauna

Priced by configuration

Best for proven far infrared in a simple, ready-to-order cabin.

  • Capacity 1-4 people options
  • Red Light Therapy No
  • Wavelength
    • RED
    • NEAR
    • MID
    • FAR
  • Finishing Basswood, Obsidian
  • Electrical 230V — check model specifications
Solo® System Sauna

Solo® System Sauna

See current pricing

Best for small spaces and lying-down infrared sessions.

  • Capacity 1 person
  • Red Light Therapy No
  • Wavelength
    • RED
    • NEAR
    • MID
    • FAR
  • Finishing Bamboo / fabric
  • Electrical 230V — check model specifications

Talk it through

Your home, your health, your questions

For 25+ years we've helped people find the right sauna for their space and goals. A free call answers what a page can't.

Mon–Fri 9:30am–6pm UK time · Free UK kerbside delivery. EU delivery charges vary. Paid installation is arranged separately after purchase.

Vs others

See how Sunlighten
infrared saunas compares to
traditional sauna

We get a lot of questions about infrared sauna blankets. To be honest, there hasn’t been much research on these products.

But as the experts who’ve been studying infrared light and developing infrared technologies for the last 25+ years, we can share what we do know.

Infrared Sauna

Traditional

Heat Source
Patented Solocarbon, Heats body directly
Heat Source
Heats from stove
Breathability
Comfortable, non-stifling heat
Breathability
Intense at high temps
Best for
Detox, pain relief, heart health, inflammation, skin health, stress relief, sleep, anti-ageing
Best for
High heat exposure, muscle relaxation, traditional sauna experience
Maintenance
Low, easy to clean
Maintenance
Moderate, wood care and cleaning
Use
Plug and play, no special ventilation
Use
Needs proper insulation and ventilation
Sweat Level
High, with cellular-level detoxification
Sweat Level
High, surface-level sweat

Infrared Sauna

Heat Source
Patented Solocarbon, Heats body directly
Breathability
Comfortable, non-stifling heat
Best for
Detox, pain relief, heart health, inflammation, skin health, stress relief, sleep, anti-ageing
Maintenance
Low, easy to clean
Use
Plug and play, no special ventilation
Sweat Level
High, with cellular-level detoxification

Traditional

Heat Source
Heats from stove
Breathability
Intense at high temps
Best for
High heat exposure, muscle relaxation, traditional sauna experience
Maintenance
Moderate, wood care and cleaning
Use
Needs proper insulation and ventilation
Sweat Level
High, surface-level sweat

STILL HAVE QUESTIONS?

Read our FAQ's

Why choose sunlighten?

Sunlighten is committed to delivering effective, innovative, and affordable wellness products for healthier living and longevity. We want to be the clear choice for anyone seeking greater wellness and vitality—and we work hard every day to make each of our customers feel hopeful, valued, and connected to the Sunlighten family.

Choosing Sunlighten means embracing a higher standard of wellness with people who care and are the leaders in the industry. Our 25 years of innovation, patented infrared, 200+ health experts who recommend us are only part of what makes us different. We also have the most effective far infrared sauna on the market with SoloCarbon® technology – the only far infrared technology clinically shown to lower blood pressure, increase core temperature and aid in weight loss.

How do shipping and installation work?

Your sauna order includes kerbside delivery. UK delivery is free; EU delivery charges vary by destination.

Installation is an optional paid service, arranged separately after purchase. Availability and pricing depend on your installation zone. Contact our team after placing your order if you would like to arrange installation.

Prefer DIY assembly? Follow the assembly guide for your sauna model and check access and electrical requirements before delivery.

What warranty does the sauna have?

Residential: Limited lifetime (7 years) on cabinetry and heaters, 3 years on controls; 1 year on stereo* 
Commercial: 5 years on cabinetry and heaters; 1 year on controls, bench, floor, backrest and stereo* 

This sauna is designed for indoor use only. If placed outdoors, it must be fully protected using our Sauna cover or installed under suitable shelter.

What is your return and exchange policy?

You may return or exchange a non-custom sauna within 30 days of delivery if it is in its original, unopened packaging. Opened saunas cannot be returned or exchanged. Returns and exchanges may be subject to a 3% administrative fee, a restocking fee (£499 for each Signature sauna), storage fees if re-routing is needed, and return shipping fees to our warehouse.

View our full Return, exchange and cancellation policy here.

Can I cancel my sauna order?

Yes - if your sauna has not yet shipped, you may request a cancellation by emailing your sales representative or contacting our Customer Care team at customercare@sunlighten.com with your order number and reason for cancellation. Cancellations may be subject to a 3% administrative fee and storage fees if re-routing is required.

Is there a sauna protocol I should follow?

Proper sauna use is important; just like we warm up and cool down our bodies when we exercise, there are some basic steps to follow to ensure you gain maximum benefits of using a sauna. 

Before Sauna Use:

  • Drink a minimum of 8 oz. of water to prepare your body for an increase in core body temperature.
  • Prep your sauna: Pre-heat your sauna for 45-60 minutes. Your sauna will heat up approximately one degree per minute, depending on room temperature. You can use automatic start up for the Signature or Amplify infrared sauna by setting it in Reservation Mode, or schedule a start time or simply use the preheat setting of any program in the mPulse intelligent sauna.
  • Lay down towels on the bench to absorb sweat. It’s also nice to have an extra around to wipe your face during sessions. We recommend using our CELLIANT® towels from our sauna linens collection.

During Sauna Use:

  • Watch your time: Make sure to adjust your session length in accordance to your body’s needs. If you are just beginning with regular sauna use, it is important to start slow and get your body accustomed to infrared therapy. We recommend beginning with 10-15 minute sessions at 100°F every other day. Gradually increase toward 40 minute daily sessions in the optimal temperature range. Always listen to your body and adjust based on what it’s telling you.
  • Stick with it for long-term benefits: Just as with exercise or eating healthy, sauna use takes time and consistency to see results. You may not even sweat the first few times you use your sauna, but know that sweating (and the detox that comes with it) will increase over time, leaving you feeling rejuvenated and healthy.

After Sauna Use:

  • Rehydrate with at least 24 oz. of water or electrolyte drink.
  • Dry off and cool down naturally, or with a refreshing shower.
  • Keep it clean: Using CELLIANT towels on the bench to absorb sweat and excess moisture will help keep your sauna clean during regular use. Clean the wood and glass in your sauna every six months with our Natural Sauna Cleaning Kit.
How does sunlighten provide peace of mind?

Sunllighten innovates our designs, and we closely control the testing and manufacturing process. We can provide true 3rd party documentation to back up the efficacy of our products. We closely control our entire manufacturing process. We subject our products to rigorous health and safety inspections, including third-party tests and certifications. We've appointed home office employees to oversee the complete manufacturing process, from sourcing safe and sustainable materials to making regular visits to our manufacturing facilities in Asia to ensure we are providing:

  • Quality, non-toxic materials
  • Beautiful craftsmanship
  • Low EMF technology
  • ETL certification
What health benefits are associated with infrared heat, and which have been proven and documented?

Like nutrition and exercise, infrared saunas are a lifestyle choice that deliver both heat and light, and both provide a wide range of health benefits, which can vary by individual. All of the health benefits Sunlighten saunas may provide have been either clinically shown on our heaters or are based on studies of infrared wavelengths that we precisely mimic in our heaters. Sunlighten saunas are proven up to 99% effective at emitting the highest quality and quantity of infrared heat required for delivery of a number of health benefits.