Joule

RO: Joule EN: Joule (watt-second)

Fotografie digitala si IT

Indicates the energy content of the storage capacitors in an electronic flash. One Joule is the light output given by one watt burning for a second. Therefore a flash unit with a storage capacity of 300 Joules can supply the power to light a 300W lamp for one second. It doesn t take into account any electrical loss between the flash capacitor or flash tube, or the efficiency of tube and reflector.
Ephotozine

99%

Accuracy

Joule

Unitate de masura a energiei, folosita si pentru masurarea puterii blitzurilor de studio. .

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99%

Accuracy

Joule

See Watt-second.

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