An electrical interconnect assembly, comprising an electrical conductor a housing having a terminal end, a connector connected to the conductor and the housing and extending along a longitudinal axis from the terminal end of the housing, the connector having a terminal surface spaced from the housing, a light emitter within the housing, and a light guide within the housing to direct light from the light emitter to exit the housing from the terminal end to substantially illuminate the connector. Also, an electrical interconnect assembly comprising, a housing having a terminal end, a receptacle in the housing, the receptacle having an opening at the terminal end of the housing and a back wall, and a longitudinal axis extending orthogonally from the back wall; and a light emitter within the receptacle, the receptacle directing light from the light emitter to exit the housing from the terminal end to substantially illuminate the receptacle.