A boosted voltage generator for increasing boosting efficiency according to the amount of load and display apparatus including the same are provided. A removable closure is provided for the central opening to enable the container to be filled with festive material such as marbles or candy and the like that are not only capable of serving as ballast to hold one or more buoyant party balloons upon a tabletop, but also enable the balloon holder can serve as a party favor. A virtual position of the needle is tracked and recorded by the control system. A third winding is wound around a narrow side of the winding element. Post-coating processes include cooling the coating, severing individual light tubes from the chain of sequentially coated light tubes, and readying the coated light tubes for packaging. As the door is opened, the drawer is initially ejected toward the extended position.