FireLight® Infrared Bulb

The FireLight® Infrared Therapy Bulb isn’t just another red light—it’s the core of everything we create at SaunaSpace. Designed for therapeutic brilliance, it emits a powerful spectrum of red and near-infrared light (600–1000nm), perfect for cellular renewal, detoxification, and energy revitalization.

Crafted from red-stained hard quartz glass, it’s free of coatings, chemicals, and compromise. Inside, a high-Kelvin tungsten filament burns bright, offering deep radiant heat and targeted photobiomodulation. Every bulb is tested twice—once under thermal shock—to meet a higher standard of integrity and healing light.

At 250 watts, the FireLight® Bulb runs hot—intentionally so. Surface temperatures can reach 300ºF (150ºC), delivering the penetrating warmth that makes near infrared therapy so transformative.

Used in our Glow and Hearth, this heat is safely contained within shielded ceramic sockets and protective stainless steel bulb guards. Avoid touching the glass during use.

Yes, as long as you’re not staring directly at the filament. Many users relax, read, or work under its glow with eyes open or softly closed. Direct eye contact isn’t required—your cells still receive the benefits of red light and near infrared wavelengths. Trust your body’s signals and avoid any exposure that feels uncomfortable.

It’s not recommended. The FireLight® Bulb requires a special fixture for humans: one that’s grounded, EMF-shielded, and built to withstand high heat output. Conventional lamps and sockets often fall short, increasing risk of EMFs, burns, or fire.

That’s why we've engineered our Glow Light and Hearth Sauna Panel for safety and performance. Pairing your bulb with its intended purpose-built home ensures optimal therapy and peace of mind.

It’s refreshingly straightforward. If it still lights up, it’s delivering full-spectrum power. When it no longer turns on, it’s done. Unlike LEDs that fade over time, the FireLight® Bulb shines bright until its final moment.

With a 5,000-hour lifespan, most bulbs last 5 to 10 years depending on frequency of use. They maintain full brightness throughout their life. If purchased with a SaunaSpace product (Glow, Hearth, FireLight® Sauna, Shower Sauna Conversion Kit), your bulb is covered under our five-year warranty and eligible for discounted replacements afterward.

The bulb itself emits a minor electric field—typical of incandescent technology. For full protection, we recommend using it exclusively with our Glow, Hearth and FireLight® Sauna. Each is designed with built-in Faraday shielding to neutralize electric fields at the source.

Absolutely. The Glow and Hearth units bring FireLight® therapy into everyday settings—offices, bedrooms, meditation corners. Even without the sweat of a full sauna session, you’ll still receive rich red light, warmth, and mitochondrial support.

Yes. The FireLight® Bulb delivers a broad therapeutic range of red and near-infrared wavelengths, unlike narrow-band LED devices. This allows for holistic rejuvenation, from muscle repair and detox to cellular energy production.

Not while it’s on or recently used. Even when cool, avoid touching the glass. Oils from your skin can create hot spots that may weaken the bulb over time. If touched, gently wipe it with rubbing alcohol and a microfiber cloth before turning it on.

Each bulb is splash-tested during production to reveal hidden flaws. It can handle small, accidental spritzes of water, but it’s not meant for use in steam rooms or wet environments. Keep it dry to preserve integrity.

Technically, yes—but it’s not optimal. Dimmed output shifts the spectrum and reduces therapeutic benefit. For lower-intensity sessions, turn off one or more bulbs in the FireLight® Sauna. Our Glow and Hearth allow intuitive, flexible use outside of the sauna by simply adjusting your distance from the light.

We don’t just test—we test twice. Each bulb is powered on and splash-tested at our partner facility, then again at our headquarters in Missouri.

From performance and consistency to physical integrity, we inspect every detail before it earns the FireLight® name. Only the best bulbs—those that glow with strength and safety—make it to your hands.