Sunlighten Far-Infrared Cabin
Sunlighten Signature II
Sunlighten's two-person Signature II pairs chromotherapy and a Blaupunkt sound system with far-infrared SoloCarbon heaters, which Sunlighten calls clinically backed and markets as 99% effective at delivering infrared. It's one of the few Sunlighten models with a published price on the US shop.
- Far-Infrared
- 120V Plug-In
$5,499
from $2,750 a seat
26% below the median for infrared saunas.
We may earn a commission when you buy through this link, and you pay the same price. Price as recorded in our catalogue on Oct 6, 2026.
Good to know: Sunlighten's shop sold only the eucalyptus Black Edition online on Oct 6, 2026, at $5,499 against $6,399 regular; the basswood and natural eucalyptus builds weren't available. It plugs into a dedicated 120V/20A circuit (NEMA 5-20) at 2,006W.
- seats
- 2
- household outlet
- 120V
- per seat
- $2,750
Sunlighten Signature II in the wild. Sunlighten photography.
See it in action
Sunlighten Signature Far Infrared Sauna Assembly
By the numbers
Price in context
Where it sits among the 21 infrared saunas we list
At $5,499, the Sunlighten Signature II starts 26% below the median for infrared saunas. The cheapest is the Dynamic Saunas Barcelona 1-2 Person Low EMF Far Infrared Sauna at $1,999, and the dearest the Sun Home Luminar Outdoor 5-Person Full Spectrum Infrared Sauna at $14,499.
What it costs to run
Electricity for an infrared cabin at a typical 2 kW
- Per session
- 17¢
- Per month
- $3.65
- Per year
- $44
Sessions of 45 minutes at 16¢ a kWh, with the panels cycling as it holds temperature. 16¢ is the US average. Work it out for your own numbers.
How hot it gets
Infrared heats your body at a lower air temperature
104°F50°C
122°F60°C
140°F70°C
158°F80°C
176°F90°C
194°F100°C
212°F110°C
230°F
The Sunlighten Signature II is an infrared cabin. Its panels warm your body directly while the air holds around 45–60°C (113–140°F), so sessions run 30 to 45 minutes. A traditional sauna heats the air to 80–100°C. Infrared or traditional?
What to know before you buy
Far-infrared, 120V plug-in. These decide whether it suits your space and your electrical panel.
- Far-InfraredFar-infrared heats your body directly while the air stays at 45–60°C. It draws less power, and many cabins run on a normal household outlet.
- 120V Plug-InA plug-in model runs on a standard household outlet, so you won't need an electrician. Check whether it needs its own dedicated circuit.
Specifications
From Sunlighten’s own listing, checked when the page was written.
| Brand | Sunlighten |
|---|---|
| Model | Sunlighten Signature II |
| Type | Far-Infrared Cabin |
| Seats | 2 |
| Heat | Far-Infrared |
| Power | 120V Plug-In |
| Materials | Far-infrared, 120V plug-in |
| List price | $5,499 |
| Price per seat | from $2,750 |
| Where to buy | Sunlighten |
| Price recorded | Oct 6, 2026 |
How it compares
The Sunlighten Signature II beside the 3 closest models in our infrared saunas.
| Product | |  |  |  |
|---|---|---|---|---|
| Price | $5,499 | $6,199 | $8,599 | $6,199–$7,099 |
| Seats | 2 | 2 | 4 | 2 |
| Heat | Far-Infrared | Far-Infrared | Far-Infrared | Far-Infrared |
| Power | 120V Plug-In | 120V Plug-In | 240V Plug-In | 120V Plug-In |
| Links | Buy | See it | See it | See it |
Sunlighten Far-Infrared Cabin
Buy the Sunlighten Signature II
$5,499
Buy at SunlightenWe may earn a commission when you buy through this link, and you pay the same price.
Where we’ve written about it
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