... triggering voltage:5V,New digital circuit studio flash light with bowens fit MODELT-150T-300T-400T-500T ... to change by inserting and drawing.2.Model light can ON/OFF independent,can adjust synch or ... of light can adjust by light stand,link with softbox the stand will more stable.4.Trigged by infrared ... ray,can handle when far away,valid distant is 20m5.The strong light stand ,can lock the light ...