A support connector for maintaining an end of a linear LED lamp in an operative state on a support. The support connector comprises a nonconductive housing comprising a first portion including a mounting base at one end of the first portion configured to couple the support connector to the support. A second portion extends from the opposite end of the first portion and is configured to be insertable within an opening of a first end cap assembly of the linear LED lamp. First and second power electrical terminals are disposed within first and second receptacles of the support connector, and a grounding electrical terminal is disposed within a third receptacle, and the grounding electrical terminal is electrically isolated from the first and second power terminals. The first and second power electrical terminals mate with first and second conductive power pins of the end cap assembly, and the grounding electrical terminal is configured to mate with a grounding pin of the end cap assembly as the first end cap assembly is moved relative to the support connector from a position fully separated from the support connector in a path that is transverse to the length of the body into an engaged position.