Abstract: A system employing a stroboscopic light source permits an operator to remotely inspect and analyze high speed repetitive motion of machines. The system enables an operator to freeze motion or permit slow motion in either direction of moving parts in their natural environment. The system effectively shields the electronics incorporated in the light source by separating the electronics into sections and by utilizing a fiber optic cable to carry a control signal which control the firing of the flash lamp of the light source. In addition, the light source provides for control of the phase relationship between an external synchronization signal and a control signal which fires the flash lamp so that the timing of the flash can be controlled to stop a specific event in the cycle.