Recover
35 minA deep, near-infrared-weighted blend for post-workout sessions.
THERMARED™ - Red Light Therapy Panel
5-wavelength red light, engineered to perform at up to 215°F
- ThermaRed™ Red Light Therapy: Patented pending 5-wavelength red light, engineered to perform at up to 215°F.
- 5-Wavelength Spectrum
Five targeted wavelengths—590nm, 630nm, 660nm, 830nm, and 850nm—combine red and near-infrared light in one integrated system - Fits the Sauna You Own: Traditional, barrel, or infrared, from any brand. No new sauna required.
- Use It Anywhere: Take it out of the sauna and it's a full-body red light panel for your bedroom, gym, or studio.
- 450 High-Output LEDs: A high-density array of 450 LEDs delivers full-body coverage with 40–80 mW/cm² irradiance at seated treatment distance. Irradiance levels as follows 210mW/cm² at 3 inches 110mW/cm² 6 inches, 60mW/cm² at 12 inches and 40mW/cm² at 18 inches
• Product Size: 38.6″L × 8.3″ W× 2.8″ D
• Product Weight:
• Product Materials:
2 year full coverage
ThermaRed™ is the only red light built to live in a 215°F sauna, made for everyone who's had to choose between the sauna and red light. Five wavelengths of red and near-infrared light come together in one panel, with a mode for every part of your day, from a morning energizer to an evening wind-down. Add it to the sauna you already own, from any brand, or use it on its own anywhere in your home.
Choose Mounting Options: Wall Mount Kit
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5 Year Warranty
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Details
Features
Specs
Warranty
ONE PANEL. EVERY SETUP.
Add it to your sauna or use it anywhere
Add it to any sauna
Traditional, barrel, or infrared, from any brand. Mount it on the wall and get heat and red light in the same session.
Use It Anywhere
A full-body red light panel for your bedroom, gym or studio. The same five wavelengths, no sauna required.
Standard in the Vault Luxe Sauna
Buying a new sauna? ThermaRed comes built into our Vault Luxe Saunas, ready on day one.
ThermaRed™ Modes
Five Blends of Light
Red light (590–660 nm) is visible and works near the surface. Near-infrared (830–850 nm) is invisible and reaches deeper. Each mode blends the five wavelengths differently.
Restore
30 minA balanced mix across all five wavelengths for everyday recovery.
Glow
25 minVisible red and amber light, focused on skin.
Energize
30 minA bright 660 + 850 nm pairing for morning sessions.
Wind Down
40 minLower-intensity, warm-toned light for evening sessions.
Measured, not estimated
Power you can feel from the bench
450 high-output LEDs, measured at the distances you actually sit. Most panels publish output at the surface. We publish it where you'll be.
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6 inches 80 mW/cm²
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12 inches 40 mW/cm²
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18 inches 15 mW/cm²
Seated distance in most saunas: 6–12 inches, or 40–80 mW/cm².
Patent-pending sauna technology
Engineered for extreme heat
Up to 215F
Rated to run inside a traditional sauna at full heat.
Steam-ready
Built to handle bursts of steam when you pour water on the stones.
MOisture Sealed
Sealed against sweat and humidity.
One touch control
Pick a mode with one button, or from your phone.
Ultra-thin design
It disappears into the wall.
At just 1" thin, ThermaRed mounts flush against your sauna wall, with every bracket and screw hidden behind it. No bulky box, no exposed hardware. Just a clean glow where you sit.
Ultra-thin profile
Just 1 inch deep, so it never crowds the bench.
Hidden mount
The bracket sits behind the panel. Nothing visible, nothing to catch on.
Flush fit
Sits flat against the wall, so it looks built in, even in a sauna you already own.
ADD IT TO ANY SAUNA
Use it anywhere
Mount the bracket
Attach the heat-rated bracket at seat height on any way.
Route the power
Pass the cable through the wall with the included grommet to an outlet outside the the sauna.
Choose your mode
Press once to start. Five preset blends, each with its own timer.
ThermaRed™ vs. a typical red light panel
| Feature | ThermaRed™ | Typical panel |
|---|---|---|
| Wavelengths | 590nm, 630nm, 660nm, 830nm, and 850nm | 660nm and 850nm |
| Light Spectrum | Red + Near-Infrared + 590nm | Red + Near-Infrared |
| LED Technology | 450 High-Output LEDs | 60–150 LEDs |
| Maximum Operating Temperature | 215°F | 130°F |
| Direct Steam Exposure | Engineered for it | Will break and not rated for steam |
| Fits an existing sauna | Purposely made for sauna | Often crowds the bench |
Typical panel column reflects common manufacturer specifications. [Verify against current products before publishing.]
ThermaRed™ details
ThermaRed™ Wavelengths
590nm, 630nm, 660nm, 830nm, and 850nm.
TARGETED TREATMENT MODES
Five preset modes: Recover, Restore, Glow, Energize, and Wind Down.
450 HIGH-OUTPUT LEDs
High-density LED array engineered for powerful, full-body light coverage.
RED + NEAR-INFRARED THERAPY
Combines multiple light wavelengths in one integrated system.
ENGINEERED FOR EXTREME HEAT
Purpose-built to operate in sauna temperatures up to 215°F.
SAUNA-INTEGRATED DESIGN
Purpose-built to combine traditional sauna heat with advanced light therapy.
HIGH-INTENSITY IRRADIANCE
Delivers 210 mW/cm² at 3 inches and 110 mW/cm² at 6 inches.
SLIM, LOW-PROFILE DESIGN
Just 0.7 inches thick, designed to integrate seamlessly into premium sauna interiors.
STEAM + MOISTURE RESISTANT
Engineered to withstand direct steam, heat, and moisture inside the sauna.
FULL-BODY LIGHT COVERAGE
450 strategically positioned LEDs deliver broad, high-intensity treatment coverage.
A Note From Taylor,Designer & Co-Founder
Traditional doesn’t have to look traditional.
I designed VAULT around contrast—cold black metal against warm Thermopine Aspen, finished with a proprietary compressed quartz floor. Every material was chosen to make the sauna feel architectural, substantial, and completely different from the wood boxes we’ve come to expect.
VAULT is our interpretation of what a traditional sauna should look like today.
Chief Creative Officer & Co-Founder, LIT INC.
FOR GYMS, STUDIOS, SPAS + HOTELS
UPGRADE EVERY SAUNA YOU ALREADY OWN
Add red light to the saunas your members and guests already use, without replacing a single one. Volume pricing and installation support from the team behind 500+ commercial spaces.
VAULT
Sauna Frequently asked questions
What is ThermaRed™?
ThermaRed™ is LIT's red light panel, built into the Vault and engineered to run in full Finnish heat. It combines five wavelengths of red and near-infrared light (590, 630, 660, 830, and 850 nm), so you get a true sauna session and red light in the same sitting.
Which light mode should I use?
Recover is built for post-workout sessions, inflammation for everyday use, rejuvenation for skin, Energize for mornings, and Sleep for evenings. Each mode runs 20–30 minutes and turns off on its own.
Can I finance my sauna?
Yes! We offer 0% APR financing for up to 36 months. You can easily apply by proceeding to checkout and selecting our trusted financing partner, Bread Pay. The application process is quick, and only a soft credit check is required — meaning it won’t impact your credit score.
Can I use the Vault outdoors year-round?
Yes. The gunmetal exterior is engineered specifically for outdoor exposure including UV, rain, snow, and temperature swings. The double-insulated glass panels retain heat efficiently even in cold climates. If you're placing it outdoors in cold climates, you'll want to upgrade to the 8KW heater which can handle freezing temperatures as low as -30F.
How hot does it get, and how fast?
The Harvia Spirit 6kW heater reaches up to 200°F and heats the Vault in about 30 minutes, depending on the outdoor temperature.
What electrical do I need?
The heater needs a dedicated 240V, 30A circuit installed by a licensed electrician. It's the only part of the setup that needs a pro. ThermaRed is fully integrated into the unit.
How is it delivered, and how long does assembly take?
Your Vault arrives by scheduled freight delivery, and two people can assemble it in about 2-4 hours. Prefer help? Professional installation is available with our professional installer network.
Do I need an electrician to install the vault?
The one step that requires a licensed electrician is connecting the Harvia stove, which runs on a 240V dedicated circuit 30A. This is standard for any electric sauna or hot tub install. Budget roughly 200–500 for the electrical work depending on your local rates and whether a new circuit needs to be run.
Does it include built-in speakers?
Yes! The sauna comes equipped with fully integrated Bluetooth (BLE) speakers, so you can easily connect your device and enjoy your favorite music, podcasts, or meditation playlists during your session — no wires, no hassle.
What is the warranty?
Yes! The sauna comes equipped with fully integrated Bluetooth (BLE) speakers, so you can easily connect your device and enjoy your favorite music, podcasts, or meditation playlists during your session — no wires, no hassle.
Flexible financing
0% APR for up to
36 months*
Recover now and pay over time with flexible financing through Bread Pay®. Terms apply.
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$0
Zero money down
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0% APR
For up to 36 months*
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Low monthly cost
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Checking your eligibility won't affect your credit score. 0% APR available on 6, 12, 24 and 36 month terms.* Subject to credit approval.