The 7 specs that actually matter in a red-light therapy panel.

What this guide is (and isn't)

This is a specification-led framework, not a disguised sales brochure. We built it because red-light therapy listings are awash in inflated numbers — "medical-grade," "clinical power," invented irradiance figures — and most shoppers don't have a reliable way to tell a genuine panel from a glossy one. The guide gives you seven lenses to evaluate any panel, ours included. If a competitor beats us on a spec that matters to you, the guide will show it.

The 7 specs that actually matter

We rank the specifications by how much they change what a panel actually does to your skin and tissue — not by how impressive they look on a spec sheet. The seven: (1) irradiance / fluence — how much light energy reaches the target, the single most load-bearing number; (2) wavelengths — which specific bands (commonly 630-670 nm red, 810-850 nm near-infrared) the panel emits; (3) total power output — distinct from LED count, and frequently conflated in marketing; (4) treatment area — the real coverage at a usable distance, not at the glass surface; (5) build quality — housing, thermal management, expected service life; (6) certifications — and what each one does and does not mean; (7) warranty and post-sale support.

Why irradiance is the spec almost everyone hides

Irradiance — light energy delivered per unit area, typically expressed in mW/cm² — is the number most likely to be exaggerated, misreported, or simply omitted in consumer listings. A panel with thousands of LEDs can still deliver modest irradiance at treatment distance if the optics, drive current, and beam geometry are poor. The guide explains how to read an irradiance figure, what measurement distance it was taken at, and why a number quoted at the glass surface tells you almost nothing about what reaches your skin six inches away.

Certifications, decoded

Certification language is where most buyers get misled. Our guide translates the terms in plain English: what "FDA-listed" means (and that it is not the same as cleared or approved), what a Health Canada Class II medical device licence actually covers, what 510(k)-exempt signifies, and why ISO 13485 matters for the manufacturer but isn't a product claim. We attribute every certification to the device and the manufacturer — never to Hale as a brand — because that's the honest way to talk about regulated devices.

The comparison checklist

Every guide download includes a one-page checklist you can print or keep on your phone. Walk any product listing through it: irradiance at a stated distance, exact wavelengths, total optical power, real treatment area, housing and thermal details, named certifications with their correct meaning, warranty length, and whether the seller responds to support questions. The checklist turns marketing copy into a comparable grid — which is exactly where vague listings fall apart.

No. It's a framework for evaluating any panel, ours included. The seven specs apply equally to Hale, Kala, Mito, Joovv, or a no-name Amazon listing. If a competitor beats us on a spec that matters to you, the guide will make that visible — and we'd rather you know.

To deliver the PDF and the checklist. We send occasional related research and product updates, and you can unsubscribe at any time. We do not sell or rent your address.

It'll tell you how to decide. Specific product recommendations depend on your budget, treatment goals, and space; the guide gives you the criteria to make that call yourself rather than trusting a listing's headline.

Research suggests specific wavelengths of red and near-infrared light may support skin, muscle-recovery, and comfort outcomes, and clinical literature is growing. We don't use the word "proven," and we'd be skeptical of any brand that does. The guide points you toward how to read the evidence yourself.