How strong the light is at the moment it hits your skin, measured in mW/cm² (milliwatts per square centimetre). Higher number, more light energy reaching your cells per second — similar to water pressure from a shower head. Our panels deliver up to 192 mW/cm² at the surface (Pro, Max, and Ultimate), dropping to roughly 130–140 mW/cm² at 6 inches depending on model.

Milliwatts per square centimetre — the standard unit researchers use to describe light intensity landing on your skin. 1 milliwatt = 1/1000th of a watt. A reading of 140 mW/cm² means 140 milliwatts of light energy reaching every square centimetre of exposed skin, every second.

The total light energy your body takes in over a session, measured in J/cm² (joules per square centimetre). The formula is simple: Dose = Intensity × Time. At 140 mW/cm² for 5 minutes (300 seconds), that's 140 × 300 ÷ 1000 = 42 J/cm². Different goals call for different dose ranges — that's exactly what this tool is built to find.

Joules per square centimetre. A joule is a unit of energy — 1 joule = 1 watt for 1 second. Researchers use J/cm² because it captures both intensity and exposure time in one figure. Most published studies on red and near-infrared light therapy land somewhere between 10 and 120 J/cm², depending on what's being treated.

For full-body sessions on the Pro, Max, or Ultimate panel, your session splits in half: you face the panel for the first portion (front), then turn around for the second (back). This keeps coverage even on both sides of your body.

Red light therapy follows a biphasic response — too little does nothing, too much can briefly work against the cellular response you're going for. The target range is the dose window where published research consistently shows results for that specific goal. This tool flags whether your settings land below, inside, or above that window.

The clinical name for red and near-infrared light therapy — photo (light), bio (life), modulation (change). It describes how specific wavelengths trigger biochemical shifts inside your cells, mainly by prompting mitochondria to produce more ATP, the molecule your body runs on. It's backed by more than 6,000 published studies.