A test system, namely, a software and hardware system for a time domain measurement which is converted to a frequency domain, for use in the field of electrical contact testing

Chandeliers; Humidifiers; Lamps; Arc lamps; Book lights; Desk lamps; Electric lamps; Floor lamps; Germicidal lamps for purifying air; Overhead lamps; Street lamps; String lights for festive decoration; Ultraviolet ray lamps, not for medical purposes; Wall lights; Electric night lights