Studio flash output is measured in watts per second, or Joules (basically the same thing). A home studio or small commercial studio will manage with lights of around 200w/s.

Silver Award 2018 Attribué à Xavier WTTRWULGHE. , ,, , , Studio-Flash PHOTOGRAPHER - CREATIVE RETOUCHING & VISUAL IMAGERY.

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SEVENTEEN S.Coups announces his plans to resume activities with the group after going on hiatus for health reasons He shares that he’s feeling a lot healthier now & that he has been working out & going to the studio as well Source: n.news.naver.com/entertain/arti… pic.twitter.com/6ft7aXKMwE