... 1/1,step-less adjustment,and 1/16-1/1 adjustmentIt has cooling fan in the bottom,electric circuit has overpressure ... control range1/8-1/1 step-less adjustment and 1/16-1/1 step-less adjustmentModeling lamp75WColor temperature5300k-5600kFlash triggering ... . We have passed CE,PSE,ROHS certifications. Our customers are in USA, Russia, Netherlands, Germany, UK, France, India, Japan, South Korea, ...