WHAT MAKES OUR SPECTRUM SPECIAL?
The ThermaLight® bulb has a very similar light distribution to sunlight—peaking in the optimal therapeutic wavelengths of red and near infrared light, then trailing gently into mid and far infrared. The major difference is that we’ve taken out harmful UV and blue light for your health and safety.
Our focus on near infrared isn’t just natural, it’s more comfortable. Because they heat you directly, ThermaLight® bulbs don't need to make the air in your sauna as hot. You’ll get all the benefits of heat and light therapy, but without feeling the stifling heat of traditional saunas.