Why Infrared Light Therapy?
Near Infrared
Near infrared (NIR) is the shortest infrared wavelength and penetrates the skin’s surface more effectively than the other two. Scientific research shows that when delivered at the vital wavelength of 880nm without extreme heat or light, NIR promotes skin renewal, cell health, wound healing, and tissue growth.
NIR heaters consisting of high-wattage halogen bulbs at extremely high temperatures are not comfortable or beneficial. In order to make NIR heat safe for saunas, we used NASA research to develop a patented LED array that provides NIR at a singular wavelength with minimal variability and virtually undetectable heat and light.
LEDs are effective because they can trigger a natural photo-biochemical reaction (similar to how plants use chlorophyll to convert sunlight into plant tissue). Research from Dr. Harry Whelan, it takes a specific joule of NIR energy to deliver the wavelength needed to penetrate human tissue.
Mid Infrared
Mid infrared (MIR) is a longer wavelength that can penetrate deeper into the body’s soft tissue where inflammation occurs. MIR helps expand blood vessels and increases circulation, so more oxygen can reach injured areas of the body. This reduces pain and speeds the healing process. View 3-in-1 study on pain relief.
To produce MIR, sauna heaters must be able to maintain a surface temperature of 250⁰C. Though many sauna companies claim to provide full spectrum, the polypropylene material used in their heaters actually melts at the high temperature required for MIR. We worked with engineers and scientists to overcome this obstacle by using a higher quality product – DuPont’s Kapton® polyimide film—a high tech material made to tolerate the high heat required to produce MIR. Plus, since our full spectrum heaters are made up of three distinct heating elements, the MIR layer can be heated independently to a higher temperature than the FIR layer.
Far Infrared
The longest wavelength, far infrared (FIR), reaches deepest into the body, where toxins are stored. By raising your core body temperature, FIR stimulates the sweat glands, resulting in a deep, detoxifying sweat that leaves you feeling revitalized. Plus, since sweating increases heart rate, cardiac output, and metabolic rate, you’re also burning calories.
We already achieved the most effective far infrared heater with our highly emissive Solocarbon heater coating . We’ve applied that same coating to our polyimide panel and discovered this application makes it 99% emissive! This is why Solocarbon panels are the only far infrared heaters clinically shown to raise core body temperature nearly 3° for the most detoxifying sweat, lower systolic and diastolic blood pressure and aid in weight loss.

The Active Ingredient for the Highest Quality Infrared
The Proof is in the Process
Our patented heater design is our special sauce. Solocarbon panels are made up of three separate layers that are sandwiched together and cured at 320°F resulting in a nearly perfect black body. This unique process makes our far infrared heaters 99% emissive, safe, and effective. In fact, the materials used in our highly emissive coating are FDA approved which ensures that it is non-toxic. It is also a more efficient heat source and consumes less energy.

Solocarbon Heaters: A Perfect Equation for Vitality
Large Surface Area + High Emissivity + High IR Power = Therapeutic Results.
Total Surface Area
Far infrared waves have a regenerative effect on the body when emitted in the vital range of 7-14 microns. According to Wein’s Law, infrared energy at a lower surface temperature peaks in this vital range. The design of a Solocarbon heater allows for most of the far infrared wavelength to be near 9.4 microns, which is the level at which the human body absorbs infrared energy.
This is also the frequency at which a water molecule resonates or vibrates. This vibration causes a release of cellular toxins. This optimal micron output also allows for deeper penetration of far infrared heat, which improves pain relief, detoxification, weight loss, and skin purification. Our Solocarbon heaters maintain a constant, lower temperature that’s optimal for far infrared therapy. Heaters with larger surface areas create a more even distribution of heat so your sauna experience is both comfortable and therapeutic.
Emissivity
Emissivity is the ability of an object to emit or absorb energy. A perfect black body has an emissivity of 1, emitting 100% of infrared energy. An object with an emissivity of 0.6 will absorb 60% and reflect 40% of the energy. For infrared therapy to be successful, sauna heaters must have a high emissivity level to deliver a high concentration of infrared waves. As your body absorbs high levels of infrared, it begins to heal at the cellular level. Without high emissivity, a sauna may produce heat, but it won’t provide healing infrared. Sunlighten Solocarbon FIR heaters are clinically proven to be 95% emissive.
Infrared Power
Infrared power is a measure of the concentration of energy (wattage density) and a prime indicator of heater quality. Heaters with higher wattage more effectively deliver infrared across the entire spectrum. Infrared heaters have different outputs based on their wattage density and placement in the sauna. Solocarbon heaters are designed to emit the optimal amount of far infrared and are located in optimal positions within the sauna.

Clinically Backed for Quality & Safety
mPulse Believe
2 person sauna
The world’s FIRST and ONLY 3-in-1 full spectrum infrared sauna – available exclusively from Sunlighten – allows you to take charge of your health with:
mPulse Believe Specifications
Exterior: 51.7” x 47.6” x 78.5”*
*includes 2″ feet
Interior: 45.9” x 41.6” x 71.5”
Bench: 45.9″ x 21.7″ x 20.2″
Heaters: 6 FIR, 5 MIR, 4 NIR
*No floor heater in eucalyptus models
