A selection system for selecting at least one candidate from a group of potential candidates includes a survey database, a candidate database, and a processor. The optoelectronic assembly includes ferrules and sleeves. The transparent main body has a first face and the second face which is opposite to the first face. Thus in one embodiment, the voltage supply that is utilized for the circuitry that drives a control terminal of the output transistor of the regulation circuitry may be varied in relation to variations in the input voltage.