FireLight Infrared Bulb
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SKU: BT00120000N UPC: 810018190002
Experience infrared therapy the way nature intended with our proprietary FireLight® bulbs (formerly known as ThermaLight®). We spent years perfecting a spectrum that delivers near, mid, and far infrared, plus red light just like the sun—but with none of the harmful UV.
The bottom line: you get the best heat and light therapy in less time. Sweat faster, feel better.
- No harmful UV light
- No blue light
- No flicker stress
- No mercury, no toxic materials, no paints, no coatings
- Delivers 2–4x more red and near infrared wavelengths than competitors
- High-frequency hard quartz glass
Note: Each stained glass bulb is unique and may have slight color variations that in no way affect performance. Each bulb goes through a strict quality control process to ensure your satisfaction.
*Two-year warranty applies to FireLight® Bulbs used as intended in SaunaSpace products. For all other uses, warranty is limited to one year. When you make a warranty claim, SaunaSpace may ask for proof of purchase of accompanying SaunaSpace products before processing the claim.
No One Does Infrared Like Us
We’ve spent years crafting the perfect hand-blown sauna bulb. We mimic the best of the sun—with none of the harmful UV—to create full-spectrum infrared therapy that is truly one of a kind.
See How it WorksReviews and Questions
- MSMark S.Verified BuyerRated 5 out of 5 stars1 month agoBathroom heat lamp
Wife LOVES the bulb. Got it as a holiday gift. Decided to give her the 'fancy hotel' experience everyday.
Bulb gives off plenty of heat.
- SLSteven L.Verified BuyerRated 5 out of 5 stars1 month agoLamp that works
Quick review! I have major issues in my neck and lower back. Major pain that never really goes away just different degrees of pain. Long story short, I tried the IR bulbs and found they work wonders and is not finally a scam! These were my daughters lamps she purchased and had me try, which she uses daily. THEY WORK!
- EEliseVerified BuyerRated 3 out of 5 stars1 month agoNot the same as their older “Thermalight”
I ordered this without reading the fine print, just assuming it was the same as the prior bulb that I had purchased from them because the price was about the same. I loved the prior bulb, which was a very deep red handblown glass. Honestly, I felt like the price was worth it for that bulb, but I’m not certain that it’s worth it for this one. It seems similar to other others I’ve seen on the market for less. It still seemed like a good bulb, but less than a month after buying it, I knocked the lamp over and the filament is now broken (my fault) so I need to replace and I’m looking elsewhere.
SaunaSpace3 days agoThank you for your honest feedback. We’re sorry to hear that the new bulb didn’t meet your expectations, and we appreciate the opportunity to clarify a few things regarding the changes.
As you mentioned, we switched to a new bulb design—the FireLight® Bulb—in November 2023. While it may look different from the previous ThermaLight Bulb, we assure you that it offers an enhanced experience. The new design uses a slightly lighter red hard quartz glass, which allows more irradiance to pass through, providing a more powerful light and heat therapy.
Our FireLight® Infrared Bulb delivers 2x the irradiance in the light therapy (photobiomodulation) band of red and near-infrared light (600nm - 1000nm) and also provides more heating. This makes the bulb not only more effective for light therapy but also offers a stronger therapeutic experience.
Thanks again for sharing your thoughts with us, and we hope you'll consider giving the FireLight® bulb another chance!
- KCkathleen c.Verified BuyerRated 5 out of 5 stars3 months agofirst purchase
i cannot afford a whole set-up right now, so i purchased a single bulb. i am enjoying it ( i believe i have seen an improvement in inflammation), so are my senior pups!
- AKAndrea K.Verified BuyerRated 5 out of 5 stars8 months agoSignificant reduction in inflammation!
My father has recently been diagnosed with a rare genetic mutation called Vexas, which causes severe inflammation of the cartilage throughout the body, particularly in the nose and ears.
After only 10 minutes of exposure to the sauna space infrared bulb, there was a significant reduction in inflammation. Regular use has also been helping to reduce the pain and redness.
I also have a sauna space bulb and look forward to using it daily to ease aches and pains, rejuvenate my skin, reduce screen fatigue, and simply enjoy basking under the glow.
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