A pivotable optical element that may be filly deflected in a plurality of positions is disclosed. A first therapeutic agent is associated with the first section and a second therapeutic agent is associated with the second section. Connection is accomplished by using a multi-pinned plug connector which sequentially engages conductive surfaces at different levels within the receiving PCB. Accordingly, the power supply sub-circuit is connected to the first and second terminals only when the supplied AC current is simultaneously supplied via a terminal of each of the first and second pair of terminals.