For a pad at 25 milliwatts per square centimeter applied directly to skin for 1 second, the dose is 25 millijoules per square centimeter; for 10 seconds the dose is 250 millijoules per square centimeter; for 60 seconds the dose is 1,500 millijoules per square centimeter; and for 10 minutes (600 seconds) the dose is 15,000 millijoules per square centimeter or 15 joules per square centimeter.

factualpending

Speaker

Unidentified Speaker — Understanding Red Light Dose I Chapter 5 [zO7YQ0JueJI]

Evidence Quote

if I had a pad which is 25 Milli watts per centimeter squared placed directly on my skin and I turned it on for exactly one second I would receive 25 millijoules per centimeter squared... 25 milliwatts per centimeter squared times 10 seconds equals 250 millijoules per centimeter squared if we did this for 60 seconds we get 1 500 millijoules per centimeter squared if we did it for 10 minutes or 600 seconds we get 15 000 millijoules per centimeter squared or 15 joules per centimeter squared

Source

Understanding Red Light Dose I Chapter 5LightpathLED
Created: 8/13/2026, 7:47:20 AM

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