Pricing
Red light irradiance buyer’s guide (2026)
Irradiance without a distance and an instrument is a mood. This is the literacy page we wish every panel listing linked to. Bring a skeptical pencil, not a coupon.
Gregory Greenstein · Editor, Recoveracent
Published September 21, 2026
Updated September 21, 2026
Pricing checked September 21, 2026
14 min read
Recoveracent is an affiliate publication. Some outbound product buttons may earn us a commission if a real partner URL is configured. Until then they go to the brand’s official site. We do not invent network IDs. Rankings are not for sale. Full disclosure.
You will see numbers like 160 mW/cm², 100 mW/cm², and 56 mW/cm² on panels that look identical in a photo. They might all be “true.” They are not comparable until you know where the sensor sat and what the sensor was.
Units that matter
- Irradiance — mW/cm². Power per area at a location.
- Fluence / dose — J/cm². Irradiance × time (with unit conversion). This is what protocols in papers are trying to specify.
- Wavelength — nm. 660 and 850 class are the civilian baseline. Extra peaks are optional.
- Distance — inches or cm from the emitting surface to the skin (or the sensor).
Solar meters vs spectroradiometers
Cheap solar power meters are built for broadband sunlight. LED panels fool them high. A spectroradiometer (or a well-specified optical power meter with the right detector) is how you get the smaller, less Instagrammable number. Brands that publish both (Mito’s public education is the example we cite) are doing the industry a favor. Brands that only quote “at the LED surface” are quoting a place your face should not live.
| Claim style | What to ask | How we treat it |
|---|---|---|
| “160 mW/cm² at 6 inches” | Which meter? Calibrated to what? Average or peak? | Usable if method is named; still not our lab |
| “>100 mW/cm² at LED surface” | What is the 6–12 inch number? | Incomplete for body-panel shopping |
| No number | Why? | Skip, or buy for build/warranty only |
| Spectroradiometer table | Lab name, date, distance, wavelengths included | Best public evidence of output culture |
A back-of-envelope dose
If a panel is 50 mW/cm² at your belly at 12 inches, then 10 minutes is 50 × 600 s / 1000 = 30 J/cm² at that spot — if the number is real and uniform, which it never perfectly is. Edges are dimmer. Body curves. This envelope is to keep you from doing 40 minutes because a solar-meter screenshot said 200 mW/cm².
Tricks we skip
- Quoting irradiance in a tiny hotspot.
- Including wavelengths your protocol does not use in a broadband meter reading.
- “Medical grade” with no listing.
- Disease claims. Instant skip. See disclosure and how we rank.
Then go shop panels or the Joovv vs Mito fight with a calmer pulse.