Energy: 1000 Ws Energy range: 7 f-stops (15,6-1000 Ws) Energy control increments: 1/10 and full f-stops Recycling Time 230V50Hz: 0.2-2s Flash Duration t 0.5: 1/1800 (max power), 1/700s (min power) Modeling Lamps Total W/pack (max.): 300W Dimensions: 30x13x17 cm Weight: 2.94kg