Photographic term Joule (Watt-second) SWPPMaster The Art And Business Of Creative Newborn Photography

SWPP Home
Magazine
About us
Join

Term - Joule (Watt-second)


Joule (Watt-second)SWPP Photographic Glossary

Sunday 20th August 2017  




SWPP

Glossary
 

The Annual Convention
with a huge list of
cutting edge speakers from
4 continents.

Image Competition
Free entry for SWPP members.

Membership
Free Information Pack

Qualifications - An Overview

Website Design and Hosting
Website design and hosting from only 7.50 a month. We create stylish and contemporary web sites to suit your budget. See our portfolio here.
colintjones.co.uk/

Joule (Watt-second)

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.



 

Information provided by: SWPP
More Photographic Terms

SWPP, 6 Bath St, Rhyl, LL18 3EB
Tel  01745 356935
International code (44)
Copyright 2006-16 SWPP. All rights reserved.
10/02/2017 10:28:54