Sunlighten Signature II 2-Person FAR Infrared Sauna for Indoor Home Wellness
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What Happens After Purchase
We help make freight delivery feel simple, clear, and supported from checkout to arrival.
Order placed + specialist follow-up
Your order is placed securely online, then a sauna specialist contacts you to review details and help prepare you for delivery.
Freight carrier schedules delivery
Curbside freight delivery is scheduled directly with you, so you know when to expect your sauna.
Tracking, prep guidance + support
You’ll receive tracking and preparation guidance before arrival, with Core Human Health support available before and after delivery.
Enjoy relaxing in your new sauna
Sunlighten Signature II Far Infrared Sauna
A spacious two-person far infrared sauna designed for shared wellness, deeper relaxation, and the trusted performance of Sunlighten’s patented SoloCarbon® technology. The Signature II offers a more open, comfortable experience while maintaining the clean design, daily simplicity, and elevated feel that define the Signature collection.
Comfortable for two or a more spacious solo session.
Best for home gyms, wellness rooms, recovery spaces, and dedicated indoor sanctuaries.
Powered by Sunlighten’s patented SoloCarbon® far infrared heaters.
Requires a NEMA 5-20R outlet on a dedicated 20-amp circuit.
Spacious two-person cabin with a refined footprint.
Durable, fragrance-free wood with a clean, furniture-grade finish.
Ships in large protective boxes and requires delivery planning.
Includes chromotherapy, Bluetooth sound, low EMF design, and magnetic assembly.
The ideal balance of space, simplicity, and trusted infrared performance.
Core Human Health selected the Sunlighten Signature II because it offers the core Sunlighten far infrared experience in a size that feels noticeably more open and comfortable than a compact one-person sauna.
It is a strong fit for those who want a premium two-person infrared sauna without unnecessary complexity. With SoloCarbon® heaters, eucalyptus construction, low EMF design, chromotherapy, Bluetooth sound, and a clean indoor profile, the Signature II feels approachable, refined, and easy to make part of a consistent wellness ritual.
- Excellent choice for shared use or spacious solo sessions
- Premium Sunlighten far infrared technology in a streamlined cabin
- Well-suited for home wellness rooms, gyms, and recovery-focused spaces
Who this sauna fits best.
- Those wanting a two-person indoor far infrared sauna
- Couples or individuals who prefer more room during longer sessions
- Home gyms, wellness rooms, recovery rooms, and quiet indoor spaces
- Daily relaxation, sweating, decompression, and recovery-focused routines
- Those looking for a clean, low EMF, premium eucalyptus sauna experience
A calmer way to build wellness into everyday life.
The larger cabin creates a more open, relaxed feel whether you use it alone or with someone else.
Sunlighten’s patented far infrared heaters are designed for consistent, high-quality infrared delivery.
Chromotherapy lighting and Bluetooth audio help create a more personalized, calming sauna ritual.
Supports relaxation, sweating, and recovery-focused routines without making the experience complicated.
Fragrance-free eucalyptus offers a durable, refined, and furniture-grade look for indoor spaces.
Designed with a low EMF approach and a magnetic assembly system for a tight, efficient heat seal.
Specifications, heating, electrical, and features.
Dimensions & Capacity
| Brand / Model | Sunlighten Signature II |
| Sauna Type | Indoor far infrared sauna |
| Capacity | 2 person |
| Exterior Dimensions | 50.9″ W × 45.9″ D × 77.7″ H, including base feet |
| Interior Dimensions | 45.4″ W × 39.9″ D × 70.3″ H |
| Bench Dimensions | 45.2″ W × 20.2″ D |
| Bench Height | 19.5″ from floor |
| Door Opening | 28″ |
| Weight | 522 lbs |
Heating Technology
The Signature II uses 9 far infrared heaters, including floor heaters for more complete heat distribution. It is powered by Sunlighten’s patented SoloCarbon® infrared technology, designed for consistent far infrared delivery and a deeply comfortable sauna experience.
| Heat Type | Far infrared |
| Heaters | 9 FIR heaters, including floor heaters |
| Technology | Sunlighten SoloCarbon® infrared |
| Hybrid / Traditional Heat | No. This model is a far infrared sauna, not a traditional or hybrid sauna. |
Electrical Requirements
The Sunlighten Signature II requires a dedicated 120V, 20-amp circuit and a NEMA 5-20R outlet. The sauna should be plugged directly into the required wall outlet. Do not use a power strip, extension cord, or converter.
| Voltage | 120V |
| Power | 2006W |
| Amperage | 20A |
| Outlet / Plug | NEMA 5-20R / 5-20P |
| Dedicated Circuit | Yes, dedicated 120V, 20-amp circuit required |
| Hardwired? | No hardwiring is typically required for this model when the proper dedicated NEMA 5-20R outlet is installed. |
Always confirm final electrical requirements with the manufacturer’s specifications and a licensed electrician before installation.
Materials & Build
The Signature II is built with premium eucalyptus wood for a clean, durable, fragrance-free cabin experience. The natural wood finish gives the sauna a refined look that works well in wellness rooms, home gyms, and elevated indoor spaces.
| Wood | Premium eucalyptus |
| Finish | Clean, furniture-grade appearance |
| Wood Characteristics | Natural color, grain, and minor variation may occur |
| Assembly System | Magnetic assembly system for tight, efficient heat seal |
Included Features
- 9 far infrared heaters, including floor heaters
- Sunlighten SoloCarbon® infrared technology
- Built-in chromotherapy lighting
- Bluetooth sound system with integrated speakers
- Low EMF design
- Magnetic assembly system
- Digital control panel for simple operation
- Premium eucalyptus wood construction
Warranty Information
At Core Human Health, Sunlighten saunas are backed by the manufacturer’s warranty coverage. Residential cabin sauna warranty coverage generally includes 7 years on cabinetry and heaters, 3 years on controls, and 1 year on glass doors and audio components.
Commercial coverage may differ. Please review the full warranty section and manufacturer warranty details before purchasing. Warranty terms, limitations, exclusions, freight coverage, labor exclusions, and outdoor use requirements may apply.
Plan your delivery with confidence.
Freight Delivery, Receiving & Assembly Notes
Sunlighten saunas are carefully packaged and freight-shipped in large protective panels. Once shipped, most saunas ship within 3 days of order. The final-mile carrier will contact you directly to schedule a delivery appointment.
Support before and after you order.
Pay through AFFIRM or SHOP PAY at checkout to take advantage of 0% interest for 3 months, if you qualify.
Need more time? Choose from flexible payment plans of 3, 6, 12, 18, or 36 months with competitive interest rates ranging from 10% to 36% APR, based on approval.
This Sunlighten sauna is backed by the manufacturer’s warranty. Please review the warranty section and full warranty details for coverage, exclusions, and proper-use requirements.
Our experts can answer questions about products, features, electrical needs, freight delivery, installation planning, and choosing the right sauna for your space.
Contact Us TodayCommon questions about the Sunlighten Signature II.
Is this sauna indoor or outdoor?
The Sunlighten Signature II is best suited as an indoor far infrared sauna. It works well in home gyms, wellness rooms, recovery rooms, finished basements, and dedicated indoor relaxation spaces.
How many people fit in the Signature II?
The Signature II is designed as a two-person sauna. It is also a great choice for one person who wants a more open, spacious solo sauna experience.
What type of heat does it use?
This model uses far infrared heat powered by Sunlighten’s patented SoloCarbon® infrared heater technology. It includes 9 FIR heaters, including floor heaters.
Is it hybrid, traditional, or infrared?
The Signature II is a far infrared sauna. It is not a traditional steam-style sauna and it is not a hybrid sauna.
What electrical setup does it require?
The Signature II requires 120V power, 2006W, and a dedicated 20-amp circuit with a NEMA 5-20R outlet. A licensed electrician should confirm your setup before installation.
Does it need to be hardwired?
No hardwiring is typically required when the proper dedicated NEMA 5-20R outlet is installed. The sauna should plug directly into the required dedicated wall outlet. Do not use an extension cord, power strip, or converter.
How is it delivered?
The sauna ships by freight in large protective boxes on a pallet. The final-mile delivery carrier will contact you to schedule delivery after the shipment reaches your local area.
Is assembly required?
Yes. Assembly is required after delivery. Because components are large and heavy, plan to have at least two people available to move panels and assemble the sauna in its final location.
What should I know before ordering?
Before ordering, confirm the sauna dimensions, doorway access, final placement, dedicated electrical circuit, delivery access, and the number of people available to help move the panels after delivery. Also review the manufacturer warranty and installation requirements.
Why buy from Core Human Health?
Core Human Health helps you choose the right sauna for your space, lifestyle, and wellness goals. We help you think through capacity, placement, electrical requirements, delivery expectations, and how your sauna fits into a larger relaxation and recovery-focused routine.
Resources
Sunlighten Signature Series
Signature Far Infrared Saunas
Sunlighten’s most streamlined far infrared sauna collection — designed for deep relaxation, daily wellness, and the trusted performance of patented SoloCarbon® heater technology.
The Signature Series is ideal for buyers who want the core Sunlighten experience: premium eucalyptus craftsmanship, gentle far infrared warmth, built-in chromotherapy, low EMF design, and simple push-button wellness at home.
![](https://cdn.shopify.com/s/files/1/0806/6367/5116/files/Signature2_Eucalyptus_Qtr_L.png?v=1777162670="width:100%;display:block;border-radius:22px;")
Best For
Relaxation & Overall Wellness
A simple, effective far infrared experience for consistent home use.
Technology
Patented SoloCarbon®
Sunlighten’s signature far infrared heater technology, designed for high-quality infrared delivery.
Design
Premium Eucalyptus
Durable, sustainable, fragrance-free wood with a clean, natural look.
The Experience
Simple, calming, and built for everyday use
The Signature Series is designed for buyers who want a peaceful home sauna experience without unnecessary complexity. Gentle far infrared heat, built-in chromotherapy, premium sound, and easy controls create a calming space to unwind, sweat, and support a consistent wellness routine.
Why Signature Stands Out
The essentials of Sunlighten, beautifully simplified
Signature is Sunlighten’s far infrared collection for buyers who value simplicity, quality, and proven infrared technology. It delivers the core Sunlighten experience in a refined cabin that feels easy to use and easy to love.
With SoloCarbon® heaters, low EMF design, chromotherapy lighting, premium sound, and eucalyptus construction, Signature is a strong fit for anyone creating a clean, restorative wellness space at home.
Key Features
Everything you need for a premium far infrared ritual
SoloCarbon® Far Infrared
Designed to deliver the high-quality far infrared heat Sunlighten is known for.
Low EMF Design
Engineered for a safer, cleaner sauna environment with third-party verified standards.
Chromotherapy Lighting
Built-in color therapy helps create a more calming, mood-supportive atmosphere.
Premium Sound System
Bluetooth sound with built-in speakers lets each session feel more personal and restorative.
Signature Models
Choose the right size for your space
Signature is available in one- and two-person models, both designed around simple far infrared therapy, premium eucalyptus construction, and everyday ease of use.
Signature I
A refined one-person far infrared sauna for compact wellness spaces and quiet solo recovery.
Capacity: 1 person
Exterior: 37.8" W x 39.8" D x 77.7" H
Electrical: 120V, 1350W, 20A dedicated circuit
Heaters: 8 FIR including floor heaters
Weight: 428 lbs
Signature II
A comfortable two-person far infrared sauna with more room for shared use or a more spacious solo session.
Capacity: 2 person
Exterior: 50.9" W x 45.9" D x 77.7" H
Electrical: 120V, 2006W, 20A dedicated circuit
Heaters: 9 FIR including floor heaters
Weight: 522 lbs
Why Buy From Core Human Health
A better way to choose your sauna
Core Human Health helps you choose the right sauna for your space, goals, and daily routine. We look beyond the product listing and help you think through fit, capacity, electrical needs, delivery expectations, and how the sauna will support your larger wellness lifestyle.
For buyers who want the trusted Sunlighten far infrared experience in a simple, elegant format, the Signature Series is a highly approachable place to begin.
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