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Sauna Lighting
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WHY CHOOSE NORTHERN LIGHTS?
100% Clear Western Red Cedar
Cedar has long been the premier sauna wood. Clear Cedar has no knots ensuring the longevity of our product products
Electric - Wood Fired - Infrared
The most heating choices to build your sauna. Choose from wood fired, infrared or our surgical stainless steel electric sauna heaters
Best Warranty
Our commitment to quality has been the conrner stone of our success. Our barrel saunas come complete with a full 5 year warranty.
Customer Support
We are Sauna Enthusiast first and foremost. Give us a call and let us help discuss all your sauna needs.
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Sauna lighting is a small category with strict rules. A working sauna sits at 170-195°F with humidity bursts to 60% — that environment kills regular interior light fixtures within months. Plastic housings deform, LED drivers fail, condensation enters the housing and shorts the circuit, gaskets melt. We stock two purpose-built sauna lights: the Oval Sauna Light ($98) — a vapor-tight, explosion-proof fixture rated for 75W incandescent at sauna service — and the Cedar Wood Corner Shade ($99) that softens the glare and integrates the light into the cedar interior.
Why you need a dedicated sauna light
Three failure modes kill consumer fixtures in sauna service. First, the gasket: most interior fixtures use silicone or rubber gaskets that soften and stop sealing above 140°F, letting humidity in. Second, the housing: plastic housings deform and droop at sauna temperature; even ceramic ones crack from rapid heat-cycling if not designed for it. Third, the bulb mount: standard sockets weren't designed for repeated humidity exposure and corrode quickly, leading to flickering and eventual failure.
A sauna-rated fixture uses high-temp silicone gaskets, ceramic or stainless housings, and corrosion-resistant socket assemblies. The Oval Sauna Light we stock has all three.
The Oval Sauna Light explained
Oval shape, tempered glass globe, vapor-tight gasket, ceramic E26 socket, rated for 75W incandescent at 200°F continuous service. The glass is tempered specifically for thermal cycling — it won't shatter from a temperature swing the way standard glass might.
Mount it in a corner near the ceiling. Wired through the wall behind, conduit run to a junction box outside the sauna where it joins the heater circuit or its own switched line. Hardware ships with the fixture; you supply the high-temp wire (THHN or similar rated for 200°F+).
One bulb is enough for any sauna up to 8x8 ft. Larger rooms might want two lights but it's rare to need more than one.
The Cedar Corner Shade — the optional finishing touch
The Oval Sauna Light's bare glass globe puts out direct light that some people find too bright when reclined on the bench. The Cedar Wood Corner Shade ($99) mounts in front of the light fixture, blocking direct view of the bulb while diffusing the light through the cedar slats. The result is a warmer, more ambient quality of light that integrates visually with the rest of the cedar interior.
Functional and aesthetic. Most owners buy the light first, decide whether the bare glare is bothering them, and add the shade later if needed.
What about LED sauna lights?
LED-rated-for-sauna products exist but they're a relatively new category and not all live up to the spec. The issue: LED drivers (the small circuit that converts AC to LED current) have heat-sensitive components, and most "sauna LED" lights we've tested fail within 2-3 years. The Oval Sauna Light with a quality incandescent bulb is the proven choice; replacement bulbs are cheap and last 1-2 years of normal use.
If you really want LED for sauna, look for fixtures with the driver mounted OUTSIDE the sauna and only the LED element inside — rare but they exist.
Color temperature — incandescent's hidden advantage
Incandescent bulbs sit at ~2700K — warm yellow light. That happens to be ideal for the sauna environment because it visually matches the cedar walls (which read warm) and pairs with the candlelit-quality atmosphere most owners want. Cool-white LED at 5000K+ feels clinical and harsh against the cedar.
If you do go LED, target 2700K-3000K bulbs, never anything cooler.
Frequently asked questions
Can I install a regular interior light fixture in my sauna?
You can install it. It will work for maybe 6 months. The gaskets will melt or the housing will deform and humidity will enter. Then you're climbing on the bench to swap a failed fixture for a sauna-rated one. Buy the sauna light first.
What wattage bulb should I use?
75W is the typical maximum the Oval Sauna Light is rated for. 60W is plenty for any sauna up to 8x8 ft. Going lower than 40W produces atmospheric mood lighting at the cost of practical visibility.
Where exactly should I mount the sauna light?
Upper corner, ceiling-height. That puts the light source above eye level when reclined and prevents glare. Mounting it behind a backrest or near the door also works for that reason.
Can I dim the sauna light?
You can if you use a dimmer rated for the wire run. But you'd need to wire it correctly and the dimmer can't be inside the sauna (no electronic dimmer survives 195°F). Most owners just use a regular on/off switch outside the sauna door.
Does the sauna light need a separate switch from the heater?
Recommended. You'll often want the light on without the heater (cooling-off time, cleaning, retrieving something). Separate switches let you control them independently.
