To calculate approximate irradiance at the device surface, add the power of all bulbs together and divide by the total surface area in square centimeters. This calculation is relatively straightforward for rectangular devices but more complex for circular or irregularly shaped devices.
factualpending
Evidence Quote
“to determine the approximate irradiance or power per specific area at the surface of the device we would simply add the power of all the bulbs together and divide it by the total square centimeters on the device”
Created: 8/13/2026, 7:47:20 AM
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