The present invention discloses a driver for amplifying an operating voltage of a low driving-voltage luminary. The ability to provide a visual format for representing dependency information of entities may enable database developers to efficiently explore objects in a data dictionary and better understand the dependencies of entities in the database. In one embodiment, an RC filter is further provided to control the impulse and reduce the burden that would otherwise be placed upon the refreshing power supply. The metrics can be compared to the discrete factors, where each compared metric can correspond to one of the factors.