Radiant flux

In radiometry, radiant flux or radiant power is the measure of the total power of electromagnetic radiation (including visible light). The power may be the total emitted from a source, or the total landing on a particular surface.


Units

The SI unit of radiant flux is the watt (W), which has dimensions of energy/time or, in SI units joules/second.


See also

flux

  • Power (physics)
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