The present invention is directed to a vertical-type luminous device and high through-put methods of manufacturing the luminous device. An Audible Feedback ONOFF Switch is provided which turns the audible feedback feature of the present invention on or off. A fuel high-pressure bore is led through the first injector module and the second injector module. The first half comprising a first interlinked portion and a first contact engaging portion, and the second half including a second interlinked portion and a second contact engaging portion, the second interlinked portion moveably interfitting with the first interlinked portion. According to the invention, the monitoring unit is designed to render the automatic closing inoperative for positioning the first furniture part, in an open position, from which the first furniture part, returns automatically to a closed position after a predetermined closing time interval. The deviation is compared to a predetermined tolerance in order to determine if the part at each control section is within the predetermined tolerance; and a passfail indication is determined based on the comparison.