Independent Spectrometer Tests Find Red Light Therapy Devices Delivering From 63 Percent to Nearly Triple Their Advertised Power

Outliyr's free public database catalogs 80 light therapy devices and publishes its own spectrometer measurements next to manufacturer claims for the units it has tested hands-on, seven so far.

Austin, TX - July 7, 2026-- Two red light therapy devices tested on a calibrated spectrometer at the same twelve-inch distance their manufacturers advertise returned numbers far from the spec sheet: a red and near-infrared panel delivered 63 percent of its advertised irradiance, and a full-spectrum light that includes red and near-infrared measured nearly three times its published figure. The finding comes from a new public testing database from Outliyr that places independent instrument readings next to the marketing claims shoppers currently rely on.

Red light therapy panels under test at the Outliyr lab, where measured irradiance is checked against each maker's advertised figure.

Red light therapy buyers spend anywhere from a few hundred to several thousand dollars largely on one number: irradiance, the measure of how much light a device delivers. Almost no brand publishes an independent measurement of it, and the first like-for-like comparisons suggest the advertised figures can miss in either direction.

The database catalogs 80 light therapy devices, most of them red and near-infrared panels and wearables, and publishes Outliyr's own spectrometer measurements for the units it has tested hands-on, seven so far, with more in testing. Each tested device lists measured irradiance at a standardized twelve-inch distance, peak wavelengths, electromagnetic field readings, flicker behavior, and price, so a shopper can compare on measured data instead of marketing copy.

"Brands compete on one number, and hardly any of them let you verify it," said Nick Urban, founder of Outliyr, a CHEK Functional Health Coach and a School of Biohacking Instructor. "I bought a two-thousand-dollar spectrometer and started measuring panels myself. Some miss their numbers. Some beat them. Either way, the shopper deserves the measured figure before spending a thousand dollars on the advertised one."

Testing follows a published protocol built on five instruments: a Hopoocolor OHSP350IR spectroradiometer for irradiance and full spectral output, a Hopoocolor HPCS330P flicker analyzer, a Cornet ED88T Plus EMF meter, a Satic Shield EMI meter that reads dirty electricity in Graham-Stetzer units (a measurement almost no other reviewer publishes), and a wall-power meter for electrical efficiency. All sit inside the Outliyr Testing Lab, a public registry of 20 calibrated instruments across 10 measurement domains, whose thermal-imaging camera and digital oscilloscope extend the same bench to a panel's heat distribution and power-supply integrity. Each panel is measured at five points in a cross pattern (center, top, bottom, left, and right) after a fifteen-minute warmup in a blackout environment, and tested devices are re-measured on a six-to-twelve-month cadence.

The database is free to browse in the light therapy device comparison database, and the full testing methodology and equipment list is public. Devices that are tested hands on can also earn an Outliyr Verified record, a public, code-verifiable ledger of the measured data. Manufacturers can submit devices for independent testing through the site.

The Outliyr Testing Lab: 20 calibrated instruments across 10 measurement domains behind every tested device.