A pivot connector comprising a body element and a retention element that comprises a body element interface structure (comprising at least a first pivot alignment structure), the body element comprising a retention element interface region that comprises a pivot alignment structure-receiving region. A power input assembly comprising a pivot connector, an electrical connector region and an electrical conductor that extends through an internal space defined by the retention element and that is electrically connected to the electrical connector region. An electrical connector apparatus comprising a power input assembly, a second electrical connector region and a power input assembly engagement region. A method comprising pivoting a retention element relative to a body element.