The Elinchrom Quadra Action head has the power of a studio flash in a head small enough to be handheld, or mounted on a flash bracket. The Action version has a short flash duration of 1/4000 (t0.5) at 424 Ws and 1/5700 (t0.5) at 140 Ws making it the perfect head for fashion, kids, action, sports, or any other photography involving moving subjects. It has an Intelligent Slave cell with red-eye preflash detection plus programmable and pre-set effect modes. The daylight balanced LED modelling lamp is bright enough to use as a continuous fill light – useful for DSLRs with video capability. Light duration is programmable.