In one aspect, a first device includes a display, a processor, and a memory accessible to the processor. The display is pivotably connected to the main body. The glass tube preferably constitutes a burner of a discharge lamp, in particular for use in motor vehicle headlights. The central processing unit of the second computer is autonomously connected to the main computer processor. The tool includes a body having an upper portion and a lower portion, the lower portion being secured to the running mechanism. The inventive device also comprises a feedback adjustment circuit block which acquires the first input signal in order to generate a second signal which inverts the said drive voltage when the pick-up current reaches preset values.