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Infrared sauna · Compare

Clearlight Premier IS-1 vs Sunlighten mPulse Aspire

Pick by which axis you weight. In our scoring the Premier comes out ahead, because it earns partial EMF credit for a lab report tied to its heaters while the mPulse earns none, though neither is verified at the seat. The mPulse is the more complete spectrum with real near-infrared, at a higher price; the Premier is far-only and costs about $1,200 less. In our view the Premier is the value pick and the mPulse is the spectrum pick.

Two premium brands. The Clearlight Premier IS-1 ($5,299) is a far-only cabin backed by Clearlight-commissioned Vitatech tests of bare heater panels (peaks of 0.12 to 0.36 mG at 2 inches; no seated in-cabin reading published). The Sunlighten mPulse Aspire ($6,500) is full spectrum with real near, mid, and far emitters, but its under-1 mG claim comes from a Sunlighten-commissioned Vitatech report that lists other Sunlighten models, not the Aspire, so we treat it as the brand's own claim. Neither earns verified-at-the-seat EMF credit.

$5,299Price$6,500
0.36 mG (unverified)Verified EMF1 mG (unverified)
farSpectrumfull (real NIR)
6 carbon-ceramic hybrid (True Wave) + floorHeaters6 carbon (SoloCarbon) + LED NIR + floor
listedETL/ULlisted
cabin (1-person)Typecabin (1-person)

Score breakdown

2.0Verified EMF30%0.0
6.0Spectrum disclosure20%9.0
10.0Heat & Coverage15%10.0
5.0Value20%2.5
9.0Safety & Build15%9.0

FAQ

Which has lower EMF at the seat?
Neither has a seated in-cabin reading, so we cannot say. The Clearlight Premier at least has Clearlight-commissioned Vitatech tests of bare heater panels behind it (peaks of 0.12 to 0.36 mG at 2 inches); the Sunlighten mPulse's under-1 mG claim comes from a Sunlighten-commissioned report that lists other Sunlighten models, not the Aspire.
Is the Sunlighten really full spectrum and the Clearlight not?
The mPulse Aspire delivers near-infrared from real 660 and 850 nm LEDs alongside mid and far, so its full-spectrum label is backed by a separate emitter. The Premier IS-1 is a far-only cabin and does not claim full spectrum, so the label is not at issue there; it competes on price and simplicity, not spectrum.