An electrical flash-tube that produces hundreds or thousands of flashes of light per second Used by image sensing systems to freeze images of fast moving objects which enable the images to be processed by the imaging system
A flash lamp that produces high-intensity short-duration light pulses by electric discharge in a gas. a light that flashes on and off very quickly, often used in places where you can dance (stroboscope (19-21 centuries), from strobos + English -scope (as in telescope))