The working principle of a stroboscope is based on persistence of vision. It involves emitting short duration and high intensity flashes of light that are synchronized with the motion of a rotating or moving object. As the object moves, flashes of light appear to it in slow or steady motion. By adjusting the flash rate, operators can match it to the movement of the object and accurately observe its movement. This allows precise inspection, alignment and troubleshooting in industries such as packaging and printing. Stroboscopes use a variety of light sources, including xenon flash lamps, LEDs, or lasers, and are triggered by external signals for precise timing.