Clearlight vs Sunlighten: Which Premium Infrared Brand Should You Buy?
Clearlight vs Sunlighten with real prices, the actual BBB complaint counts, and the one upsell on each side that costs you. Honest 2026 comparison.
Comparison
Quick answer: Clearlight is the safer default. It has roughly one-seventh the BBB complaint volume of Sunlighten over the same period, publishes its prices, and runs lower EMF. Buy the all-wood Clearlight Premier, not the Sanctuary. Pick Sunlighten only if a specific model genuinely fits and you go in knowing the tablet is a $1,500 post-warranty liability.
Best for
Infrared buyers already down to these two premium names who do not want to overpay or get burned on service.
Wrong fit
Buyers who have not decided infrared is even the right lane, or who have not seen the evidence-first mid-market options.
Tradeoff
Both brands have a built-in overpay trap. The skill is knowing which model to refuse, not which brand to love.
Down to these two? Here is the homework done for you.
Buy Clearlight, and buy the all-wood Premier line, not the Sanctuary. It publishes its prices, carries a lifetime heater warranty, runs under 1 mG EMF, and has roughly one-seventh the BBB complaint volume of Sunlighten over the same three years. Choose Sunlighten only if one specific model fits a need Clearlight cannot meet, and only if you accept the control tablet is a $1,500 liability waiting to happen.
This is not a "they're both great, pick a vibe" page. Both brands sell a more expensive version of themselves that is worse value than their own cheaper model. The money question is which upsell to walk away from.
~1 year, then ~$1,500 to replace tablet + power box
EMF at seated level
Under 1 mG
5 to 15 mG (independent testing)
BBB complaints, last 3 years
6
45 (15 in the last 12 months)
The trap to avoid
Sanctuary "full-spectrum" upsell
Hidden-price sales funnel + mPulse tablet
Sources: BBB and Trustpilot complaint records, FLIR thermal imaging, and independent EMF testing (sauna-warnings.com, havenofheat.com, michaelkummer.com), compiled in our brand weaknesses research.
Clearlight: the safer default, if you skip one model
What you are actually paying for: genuinely solid build quality, a real low-EMF design (independently confirmed under 1 mG), a lifetime heater warranty, and a 7-year structure warranty. For a premium infrared buyer who wants to not think about it again, that is the stronger foundation of the two.
The one thing that costs you: the Sanctuary "full-spectrum" series. You pay $2,000 to $3,000 more than the all-wood Premier for red-light and full-spectrum benefits. Independent reviewers found the quartz halogen heaters do not hit the wavelengths or intensity real photobiomodulation needs, and FLIR imaging shows the front panels running up to 30°F hotter than the side walls. That is a "hot knees, cool back" session, in a model that warms up slower and holds heat worse than the cheaper Premier. You are paying more for a worse sauna and a benefit that may not materialize. Buy the Premier.
The real risk: service at scale. The WiFi control is marketed as a premium feature and shows up repeatedly in owner complaints as failing within weeks, with replacement boxes that also fail. One documented BBB case ran nearly 12 months unresolved. Some units arrive with warped panels or scratched doors and a 6-month-plus resolution clock. The complaint volume is low for the category, but when it goes wrong it goes slow. Inspect on delivery and document everything before you sign.
Sunlighten: only with your eyes open
What you are actually paying for: strong cabin aesthetics, a clean design, and a brand built on a wellness-research story. If a specific Sunlighten model fits your space and use case in a way Clearlight does not, it can be the right buy.
The one thing that costs you: the funnel itself. Sunlighten will not show you a price until you hand over your contact details and take a sales call, which then involves financing pressure and upsells. Several BBB complaints involve trouble canceling an order after that call. Going in, decide your number and your model before you pick up the phone, and do not let the call move you off it.
The real risk: the mPulse tech layer and the volume of unhappy owners. The mPulse uses an embedded Android tablet as its main control. Owners report it failing within 4 to 18 months from heat and firmware issues, and once the roughly 1-year electronics warranty is up, Sunlighten quotes about $1,500 to replace the tablet and power box together. One documented owner replaced two heater panels, a tablet, a fan, and a light inside two years across 15-plus service calls. Independent testing also has the mPulse taking 60 to 90 minutes to reach 130 to 135°F against marketing that implies 30 minutes and 150°F+, and EMF at 5 to 15 mG versus Clearlight's sub-1 mG. And the headline number: 45 BBB complaints in three years, 15 in the last twelve months, against Clearlight's 6. Same price tier, very different service reality.
If you have not actually locked these two in
You are comparing two legacy premium incumbents. Before you spend $5,000-plus on brand history, it is worth seeing the evidence-first mid-market options, some of which publish their VOC and EMF test results before checkout. Start with best infrared sauna brands, which puts the newer documentation-led brands next to these two and carries our full disclosure. This is not a nudge away from Clearlight. It is making sure you did not skip the homework one step earlier.
Our take
Between just these two: Clearlight Premier. Lower complaint volume, published pricing, lower EMF, lifetime heater warranty, and no $1,500 tablet hanging over year two. Skip the Sanctuary.
Sunlighten earns the buy only when a specific model is a clear fit and you have priced it against Clearlight with both numbers in front of you, which means making Sunlighten quote you first.
FAQ
Is Clearlight or Sunlighten better for most buyers?
Clearlight, for most buyers, and specifically the all-wood Premier line. It publishes prices, runs lower EMF, has a lifetime heater warranty, and carries far fewer BBB complaints than Sunlighten over the same period (6 versus 45 in three years). Sunlighten can still win a specific fit, but it is the harder one to recommend blind.
Is Sunlighten overpriced?
Not automatically, but you cannot judge it from their site because they do not publish prices. Real-world range is roughly $5,000 to $12,000+. The premium only makes sense if a specific model fits a need Clearlight cannot, and you should factor in the roughly $1,500 cost to replace the mPulse tablet and power box after the short electronics warranty.
Why does Sunlighten hide its prices?
It is a deliberate lead-capture strategy: you submit contact details, take a sales call, and face financing and upsell pressure before you see a number. Decide your model and budget before that call, and be aware several BBB complaints involve difficulty canceling an order placed during it.
Which has lower EMF, Clearlight or Sunlighten?
Clearlight, clearly. Independent testing puts Clearlight under 1 mG at seated level versus 5 to 15 mG for the Sunlighten mPulse. If low EMF is a real decision factor for you, this is the differentiator.
Should I buy the Clearlight Sanctuary for the red-light benefit?
Generally no. Independent reviewers found its heaters do not deliver true photobiomodulation, it heats less evenly than the cheaper all-wood Premier, and it costs $2,000 to $3,000 more. Buy the Premier and treat red-light therapy as a separate device if you want it.
These guides are built from manufacturer documentation, public specifications, primary research where health claims matter, and repeated buyer questions that show up in real ownership and installation decisions.
Manufacturer responses can clarify pricing bands, warranty terms, support footprint, or common mistakes. They do not move a page up the shortlist on their own.
